56657474198 has 16 divisors (see below), whose sum is σ = 94475988096. Its totient is φ = 25306067520.

The previous prime is 56657474173. The next prime is 56657474221. The reversal of 56657474198 is 89147475665.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a self number, because there is not a number n which added to its sum of digits gives 56657474198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35146511 + ... + 35148122.

It is an arithmetic number, because the mean of its divisors is an integer number (5904749256).

Almost surely, 2^56657474198 is an apocalyptic number.

56657474198 is a deficient number, since it is larger than the sum of its proper divisors (37818513898).

56657474198 is a wasteful number, since it uses less digits than its factorization.

56657474198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70294679.

The product of its digits is 50803200, while the sum is 62.

The spelling of 56657474198 in words is "fifty-six billion, six hundred fifty-seven million, four hundred seventy-four thousand, one hundred ninety-eight".