56615056658 has 4 divisors (see below), whose sum is σ = 84922584990. Its totient is φ = 28307528328.

The previous prime is 56615056639. The next prime is 56615056661. The reversal of 56615056658 is 85665051665.

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

It can be written as a sum of positive squares in only one way, i.e., 40247180689 + 16367875969 = 200617^2 + 127937^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14153764163 + ... + 14153764166.

Almost surely, 2^56615056658 is an apocalyptic number.

56615056658 is a deficient number, since it is larger than the sum of its proper divisors (28307528332).

56615056658 is a wasteful number, since it uses less digits than its factorization.

56615056658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28307528331.

The product of its (nonzero) digits is 6480000, while the sum is 53.

The spelling of 56615056658 in words is "fifty-six billion, six hundred fifteen million, fifty-six thousand, six hundred fifty-eight".