I was just scrolling through the forums and i saw a comment on how many percent of total bitcoin addresses was used, so i looked for the answer, i couldnt find anything specific so i will find my own answer 
https://bitcointalksearch.org/topic/how-much-do-you-think-all-this-is-worth-4405638
Number of possible bitcoin addresses- 1461501637330902918203684832716283019655932542976
Most unique addresses ever used (idk how this fluctuates but thats what i found online) -1,054,711
1,054,711 / 1461501637330902918203684832716283019655932542976= 7.2166255e-43
Which is 0.00000000000000000000000000000000000000000072166255% Of all addresses ever
Funfact there are 10000000000000000000000000000000000000000000000000000 number of atoms in the sun so if you assigned a bitcoin address to every attom in the sun you would get upto 0.001461% of the atoms covered! That might not seem like much but compared to other numbers this number is very big
edit: number of unique addresses are actually around 20million so the total number of possible addresses used it actually 0.000000000000000000000000000000000000000013684555%
https://bitcointalksearch.org/topic/how-much-do-you-think-all-this-is-worth-4405638
Number of possible bitcoin addresses- 1461501637330902918203684832716283019655932542976
Most unique addresses ever used (idk how this fluctuates but thats what i found online) -1,054,711
1,054,711 / 1461501637330902918203684832716283019655932542976= 7.2166255e-43
Which is 0.00000000000000000000000000000000000000000072166255% Of all addresses ever
Funfact there are 10000000000000000000000000000000000000000000000000000 number of atoms in the sun so if you assigned a bitcoin address to every attom in the sun you would get upto 0.001461% of the atoms covered! That might not seem like much but compared to other numbers this number is very big
edit: number of unique addresses are actually around 20million so the total number of possible addresses used it actually 0.000000000000000000000000000000000000000013684555%
Sometimes using a scientific notation makes our life easier ..so just a quick revision
100 equals One;
101 equals Ten;
102 equals Hundred;
103 equals Thousand;
104 equals Ten-thousand;
105 equals Hundred-thousand;
106 equals Million;
107 ...
So we get the idea we are "106" community .. so we can comeback slowly to the avarage joe reality and our bitcoin calc,
(meaning Bitcoin Arithmetic Unit (ALU) and leave the FPU floating-point unit to deal with DPS DIgital Signal Processor ..)
System on a chip
