what is 9223372036854775806!
I don't believe this has an actual computable answer... even if you enter it into a calcuator the value is too high to display. By hand is a whole other matter.
Using Stirling's Formula:
what is 9223372036854775806! ==log(log(10^20.2327791))
If you are going to use Stirling's approximation, then you got it backwards!
what is 9223372036854775806! ==10^(10^(10^1.306055539958))
+36 
