22801977661872 has 80 divisors (see below), whose sum is σ = 60811128949760. Its totient is φ = 7354768377600.

The previous prime is 22801977661867. The next prime is 22801977661909. The reversal of 22801977661872 is 27816677910822.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14830422 + ... + 16295562.

It is an arithmetic number, because the mean of its divisors is an integer number (760139111872).

Almost surely, 2^{22801977661872} is an apocalyptic number.

It is an amenable number.

22801977661872 is an abundant number, since it is smaller than the sum of its proper divisors (38009151287888).

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

22801977661872 is a wasteful number, since it uses less digits than its factorization.

22801977661872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475642 (or 1475636 counting only the distinct ones).

The product of its (nonzero) digits is 56899584, while the sum is 66.

The spelling of 22801977661872 in words is "twenty-two trillion, eight hundred one billion, nine hundred seventy-seven million, six hundred sixty-one thousand, eight hundred seventy-two".