I would call it a string in {a,0}* of length 143.
1 followed by 18 zeros is a quintillion.
That depends how many zeros follow the 1.
1 decillion
If you meant a number followed by 100 zeros, that would be Google if the number was a 1. If you meant 100 zeros followed by a number, that would be just that number.
That's a tredecillion!
1 followed by 18 zeros is a quintillion.
That depends how many zeros follow the 1.
A nonillion.
Ten Trillions. Note: One followed by Three zeros = 1 Thousand One followed by Six zeros = 1 Million One followed by Nine zeros = 1 Billion One followed by Twelve zeros = 1 Trillion One followed by Thirteen zeros = 10 Trillions
A quindecillion.
1 decillion
A one to three digit number followed by six zeros is millions
If you meant a number followed by 100 zeros, that would be Google if the number was a 1. If you meant 100 zeros followed by a number, that would be just that number.
It's a googolplex
That's a tredecillion!
I call it "ten to the fifty-two", and I write it like this: 1052
A googolplexian is 1 followed by a googolplex of zeros, a googolplex is 1 followed by a googol of zeros and a googol is 1 followed by 100 zeros.