56715656215 has 16 divisors (see below), whose sum is σ = 68272633440. Its totient is φ = 45230106240.

The previous prime is 56715656191. The next prime is 56715656237. The reversal of 56715656215 is 51265651765.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-56715656215 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3543180 + ... + 3559150.

It is an arithmetic number, because the mean of its divisors is an integer number (4267039590).

Almost surely, 2^56715656215 is an apocalyptic number.

56715656215 is a deficient number, since it is larger than the sum of its proper divisors (11556977225).

56715656215 is a wasteful number, since it uses less digits than its factorization.

56715656215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18162.

The product of its digits is 1890000, while the sum is 49.

The spelling of 56715656215 in words is "fifty-six billion, seven hundred fifteen million, six hundred fifty-six thousand, two hundred fifteen".