57111022156560 has 80 divisors (see below), whose sum is σ = 177062299013760. Its totient is φ = 15228046310400.

The previous prime is 57111022156553. The next prime is 57111022156561. The reversal of 57111022156560 is 6565122011175.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (57111022156561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9834916 + ... + 14524035.

It is an arithmetic number, because the mean of its divisors is an integer number (2213278737672).

Almost surely, 2^{57111022156560} is an apocalyptic number.

It is an amenable number.

57111022156560 is an abundant number, since it is smaller than the sum of its proper divisors (119951276857200).

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

57111022156560 is a wasteful number, since it uses less digits than its factorization.

57111022156560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24368736 (or 24368730 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 42.

The spelling of 57111022156560 in words is "fifty-seven trillion, one hundred eleven billion, twenty-two million, one hundred fifty-six thousand, five hundred sixty".