...
Here's another snippet of wisdom from when I'm trying to explain the odds of guessing a private key:
Cheat code to convert 2^x to 10^x: reduce the exponent by 3 or 4 (2^3 = 8; 2^4 = 16)
2^160 is (roughly) the same as a 1 with 156 zeros.
No. You have to divide 160 by 3 or 4.
2^160 = 1461501637330902918203684832716283019655932542976
like 1 with 48 zeroes.