56615117365 has 4 divisors (see below), whose sum is σ = 67938140844. Its totient is φ = 45292093888.

The previous prime is 56615117329. The next prime is 56615117387. The reversal of 56615117365 is 56371151665.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28297295524 + 28317821841 = 168218^2 + 168279^2 .

It is a cyclic number.

It is not a de Polignac number, because 56615117365 - 2¹⁵ = 56615084597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5661511732 + ... + 5661511741.

It is an arithmetic number, because the mean of its divisors is an integer number (16984535211).

Almost surely, 2^56615117365 is an apocalyptic number.

It is an amenable number.

56615117365 is a deficient number, since it is larger than the sum of its proper divisors (11323023479).

56615117365 is a wasteful number, since it uses less digits than its factorization.

56615117365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11323023478.

The product of its digits is 567000, while the sum is 46.

The spelling of 56615117365 in words is "fifty-six billion, six hundred fifteen million, one hundred seventeen thousand, three hundred sixty-five".