56065890896656 has 15 divisors (see below), whose sum is σ = 108627721642101. Its totient is φ = 28032930472896.

The previous prime is 56065890896621. The next prime is 56065890896681. The reversal of 56065890896656 is 65669809856065.

The square root of 56065890896656 is 7487716.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 17044380138256 + 39021510758400 = 4128484^2 + 6246720^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 29014900 + ... + 30886828.

Almost surely, 2^{56065890896656} is an apocalyptic number.

56065890896656 is the 7487716-th square number.

It is an amenable number.

56065890896656 is a deficient number, since it is larger than the sum of its proper divisors (52561830745445).

56065890896656 is an frugal number, since it uses more digits than its factorization.

56065890896656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743866 (or 1871931 counting only the distinct ones).

The product of its (nonzero) digits is 5038848000, while the sum is 79.

The spelling of 56065890896656 in words is "fifty-six trillion, sixty-five billion, eight hundred ninety million, eight hundred ninety-six thousand, six hundred fifty-six".