56455660816 has 45 divisors (see below), whose sum is σ = 110313227479. Its totient is φ = 27989751200.

The previous prime is 56455660777. The next prime is 56455660829. The reversal of 56455660816 is 61806655465.

The square root of 56455660816 is 237604.

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 181529301 + ... + 181529611.

Almost surely, 2^56455660816 is an apocalyptic number.

56455660816 is the 237604-th square number.

It is an amenable number.

56455660816 is a deficient number, since it is larger than the sum of its proper divisors (53857566663).

56455660816 is an frugal number, since it uses more digits than its factorization.

56455660816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 52.

The spelling of 56455660816 in words is "fifty-six billion, four hundred fifty-five million, six hundred sixty thousand, eight hundred sixteen".