80680561652100 has 144 divisors (see below), whose sum is σ = 249614475901056. Its totient is φ = 20048751360000.

The previous prime is 80680561651967. The next prime is 80680561652209. The reversal of 80680561652100 is 125616508608.

It is a self number, because there is not a number n which added to its sum of digits gives 80680561652100.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77800336 + ... + 78830535.

It is an arithmetic number, because the mean of its divisors is an integer number (1733433860424).

Almost surely, 2^{80680561652100} is an apocalyptic number.

It is an amenable number.

80680561652100 is an abundant number, since it is smaller than the sum of its proper divisors (168933914248956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80680561652100 is a wasteful number, since it uses less digits than its factorization.

80680561652100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156631006 (or 156630999 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 80680561652100 in words is "eighty trillion, six hundred eighty billion, five hundred sixty-one million, six hundred fifty-two thousand, one hundred".