5666213763531 has 12 divisors (see below), whose sum is σ = 8184679264320. Its totient is φ = 3777407408880.

The previous prime is 5666213763523. The next prime is 5666213763559. The reversal of 5666213763531 is 1353673126665.

5666213763531 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5666213763531 - 2³ = 5666213763523 is a prime.

It is a super-2 number, since 2×5666213763531² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5666213763521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5175835 + ... + 6174276.

It is an arithmetic number, because the mean of its divisors is an integer number (682056605360).

Almost surely, 2^{5666213763531} is an apocalyptic number.

5666213763531 is a deficient number, since it is larger than the sum of its proper divisors (2518465500789).

5666213763531 is a wasteful number, since it uses less digits than its factorization.

5666213763531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11405586 (or 11405583 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 54.

The spelling of 5666213763531 in words is "five trillion, six hundred sixty-six billion, two hundred thirteen million, seven hundred sixty-three thousand, five hundred thirty-one".