56655100491 has 48 divisors (see below), whose sum is σ = 84732533760. Its totient is φ = 33639408000.

The previous prime is 56655100487. The next prime is 56655100493. The reversal of 56655100491 is 19400155665.

It is not a de Polignac number, because 56655100491 - 2² = 56655100487 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (56655100493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3994270 + ... + 4008428.

It is an arithmetic number, because the mean of its divisors is an integer number (1765261120).

Almost surely, 2^56655100491 is an apocalyptic number.

56655100491 is a deficient number, since it is larger than the sum of its proper divisors (28077433269).

56655100491 is a wasteful number, since it uses less digits than its factorization.

56655100491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14408 (or 14397 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 56655100491 in words is "fifty-six billion, six hundred fifty-five million, one hundred thousand, four hundred ninety-one".