56615501111107 has 32 divisors (see below), whose sum is σ = 60284110978944. Its totient is φ = 52985511936000.

The previous prime is 56615501111053. The next prime is 56615501111111. The reversal of 56615501111107 is 70111110551665.

It is a cyclic number.

It is not a de Polignac number, because 56615501111107 - 2³⁵ = 56581141372739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56615501111107.

It is not an unprimeable number, because it can be changed into a prime (56615501111207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4152820963 + ... + 4152834595.

It is an arithmetic number, because the mean of its divisors is an integer number (1883878468092).

Almost surely, 2^{56615501111107} is an apocalyptic number.

56615501111107 is a deficient number, since it is larger than the sum of its proper divisors (3668609867837).

56615501111107 is a wasteful number, since it uses less digits than its factorization.

56615501111107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15919.

The product of its (nonzero) digits is 31500, while the sum is 40.

The spelling of 56615501111107 in words is "fifty-six trillion, six hundred fifteen billion, five hundred one million, one hundred eleven thousand, one hundred seven".