56615056659 has 12 divisors (see below), whose sum is σ = 93459776176. Its totient is φ = 32351460912.

The previous prime is 56615056639. The next prime is 56615056661. The reversal of 56615056659 is 95665051665.

It is a happy number.

56615056659 is a `hidden beast` number, since 5 + 66 + 15 + 0 + 566 + 5 + 9 = 666.

It is not a de Polignac number, because 56615056659 - 2⁸ = 56615056403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56615056639) 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 11 ways as a sum of consecutive naturals, for example, 449325784 + ... + 449325909.

Almost surely, 2^56615056659 is an apocalyptic number.

56615056659 is a deficient number, since it is larger than the sum of its proper divisors (36844719517).

56615056659 is a wasteful number, since it uses less digits than its factorization.

56615056659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898651706 (or 898651703 counting only the distinct ones).

The product of its (nonzero) digits is 7290000, while the sum is 54.

The spelling of 56615056659 in words is "fifty-six billion, six hundred fifteen million, fifty-six thousand, six hundred fifty-nine".