56165601000 has 64 divisors (see below), whose sum is σ = 175236684480. Its totient is φ = 14977492800.

The previous prime is 56165600993. The next prime is 56165601007. The reversal of 56165601000 is 10656165.

It is an interprime number because it is at equal distance from previous prime (56165600993) and next prime (56165601007).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (56165601007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9357934 + ... + 9363933.

It is an arithmetic number, because the mean of its divisors is an integer number (2738073195).

Almost surely, 2^56165601000 is an apocalyptic number.

56165601000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56165601000 is an abundant number, since it is smaller than the sum of its proper divisors (119071083480).

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

56165601000 is a wasteful number, since it uses less digits than its factorization.

56165601000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18721891 (or 18721877 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 56165601000 in words is "fifty-six billion, one hundred sixty-five million, six hundred one thousand".