10^(2^60) = 10^1152921504606846976
To put this number is some perspective, many astronomers consider the upper limit of the number of atoms in the entire universe to be about 10^79.
Former Senior Instructor, Manhattan GMAT and VeritasPrep
Vice President, Midtown NYC Investment Bank, Structured Finance IT
MFE, Haas School of Business, UC Berkeley, Class of 2005
MBA, Anderson School of Management, UCLA, Class of 1993