5666720552 has 16 divisors (see below), whose sum is σ = 10626233940. Its totient is φ = 2833058176.

The previous prime is 5666720539. The next prime is 5666720561. The reversal of 5666720552 is 2550276665.

It can be written as a sum of positive squares in 2 ways, for example, as 5108532676 + 558187876 = 71474^2 + 23626^2 .

It is a super-2 number, since 2×5666720552² = 64223443628918369408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55508 + ... + 120060.

Almost surely, 2^5666720552 is an apocalyptic number.

It is an amenable number.

5666720552 is a deficient number, since it is larger than the sum of its proper divisors (4959513388).

5666720552 is a wasteful number, since it uses less digits than its factorization.

5666720552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75532 (or 75528 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 44.

The square root of 5666720552 is about 75277.6231824571. The cubic root of 5666720552 is about 1782.8327314677.

The spelling of 5666720552 in words is "five billion, six hundred sixty-six million, seven hundred twenty thousand, five hundred fifty-two".