56340521565 has 32 divisors (see below), whose sum is σ = 91132943616. Its totient is φ = 29719633920.

The previous prime is 56340521557. The next prime is 56340521597. The reversal of 56340521565 is 56512504365.

It is not a de Polignac number, because 56340521565 - 2³ = 56340521557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1246237 + ... + 1290653.

It is an arithmetic number, because the mean of its divisors is an integer number (2847904488).

Almost surely, 2^56340521565 is an apocalyptic number.

It is an amenable number.

56340521565 is a deficient number, since it is larger than the sum of its proper divisors (34792422051).

56340521565 is a wasteful number, since it uses less digits than its factorization.

56340521565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45349.

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 56340521565 in words is "fifty-six billion, three hundred forty million, five hundred twenty-one thousand, five hundred sixty-five".