56500163685 has 240 divisors, whose sum is σ = 122343731136. Its totient is φ = 24854957568.

The previous prime is 56500163683. The next prime is 56500163689. The reversal of 56500163685 is 58636100565.

56500163685 is a `hidden beast` number, since 5 + 6 + 5 + 0 + 0 + 1 + 636 + 8 + 5 = 666.

It is not a de Polignac number, because 56500163685 - 2¹ = 56500163683 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 56500163685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56500163683) 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 239 ways as a sum of consecutive naturals, for example, 62293002 + ... + 62293908.

Almost surely, 2^56500163685 is an apocalyptic number.

It is an amenable number.

56500163685 is an abundant number, since it is smaller than the sum of its proper divisors (65843567451).

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

56500163685 is a wasteful number, since it uses less digits than its factorization.

56500163685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054 (or 1038 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 56500163685 in words is "fifty-six billion, five hundred million, one hundred sixty-three thousand, six hundred eighty-five".