56536664159968 has 48 divisors (see below), whose sum is σ = 112351703864400. Its totient is φ = 28004129821696.

The previous prime is 56536664159959. The next prime is 56536664159977. The reversal of 56536664159968 is 86995146663565.

It is an interprime number because it is at equal distance from previous prime (56536664159959) and next prime (56536664159977).

It is a super-2 number, since 2×56536664159968² (a number of 28 digits) contains 22 as substring.

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, 17776618 + ... + 20714281.

It is an arithmetic number, because the mean of its divisors is an integer number (2340660497175).

Almost surely, 2^{56536664159968} is an apocalyptic number.

It is an amenable number.

56536664159968 is a deficient number, since it is larger than the sum of its proper divisors (55815039704432).

56536664159968 is a wasteful number, since it uses less digits than its factorization.

56536664159968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38491339 (or 38491331 counting only the distinct ones).

The product of its digits is 7558272000, while the sum is 79.

The spelling of 56536664159968 in words is "fifty-six trillion, five hundred thirty-six billion, six hundred sixty-four million, one hundred fifty-nine thousand, nine hundred sixty-eight".