56366645321 has 8 divisors (see below), whose sum is σ = 64433870400. Its totient is φ = 48303132048.

The previous prime is 56366645303. The next prime is 56366645327. The reversal of 56366645321 is 12354666365.

56366645321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56366645321 - 2¹⁴ = 56366628937 is a prime.

It is a super-2 number, since 2×56366645321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56366645327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 895331 + ... + 956216.

It is an arithmetic number, because the mean of its divisors is an integer number (8054233800).

Almost surely, 2^56366645321 is an apocalyptic number.

It is an amenable number.

56366645321 is a deficient number, since it is larger than the sum of its proper divisors (8067225079).

56366645321 is a wasteful number, since it uses less digits than its factorization.

56366645321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855903.

The product of its digits is 2332800, while the sum is 47.

The spelling of 56366645321 in words is "fifty-six billion, three hundred sixty-six million, six hundred forty-five thousand, three hundred twenty-one".