56745564465 has 16 divisors (see below), whose sum is σ = 94740421248. Its totient is φ = 28948461696.

The previous prime is 56745564389. The next prime is 56745564527. The reversal of 56745564465 is 56446554765.

It is not a de Polignac number, because 56745564465 - 2³⁰ = 55671822641 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 82239604 + ... + 82240293.

It is an arithmetic number, because the mean of its divisors is an integer number (5921276328).

Almost surely, 2^56745564465 is an apocalyptic number.

It is an amenable number.

56745564465 is a deficient number, since it is larger than the sum of its proper divisors (37994856783).

56745564465 is a wasteful number, since it uses less digits than its factorization.

56745564465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164479928.

The product of its digits is 60480000, while the sum is 57.

The spelling of 56745564465 in words is "fifty-six billion, seven hundred forty-five million, five hundred sixty-four thousand, four hundred sixty-five".