56451615465 has 24 divisors (see below), whose sum is σ = 105069130560. Its totient is φ = 25806452448.

The previous prime is 56451615433. The next prime is 56451615491.

56451615465 is nontrivially palindromic in base 10.

56451615465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56451615465 - 2⁵ = 56451615433 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38401725 + ... + 38403194.

It is an arithmetic number, because the mean of its divisors is an integer number (4377880440).

Almost surely, 2^56451615465 is an apocalyptic number.

It is an amenable number.

56451615465 is a deficient number, since it is larger than the sum of its proper divisors (48617515095).

56451615465 is a wasteful number, since it uses less digits than its factorization.

56451615465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76804941 (or 76804934 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 48.

The spelling of 56451615465 in words is "fifty-six billion, four hundred fifty-one million, six hundred fifteen thousand, four hundred sixty-five".