undecillion

There are 1 undecillion living things on Earth.

Net firms are in the process of moving to version 6 of the IP addressing scheme, which offers more than 3 undecillion individual numbers (3 with 38 noughts)

The numbers past a trillion, in ascending powers of ten, are as follows: quadrillion, quintillion, sextillion, septillion, octillion, nonillion, decillion, undecillion, duodecillion, tredecillion, quattuordecillion, and quindecillion (that's 10 to the 48th, or a one followed by 48 zeros).