5666564737 has 4 divisors (see below), whose sum is σ = 5666745136. Its totient is φ = 5666384340.

The previous prime is 5666564723. The next prime is 5666564747. The reversal of 5666564737 is 7374656665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5666564737 is a prime.

It is a super-2 number, since 2×5666564737² = 64219911837223758338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5666564747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29439 + ... + 110452.

It is an arithmetic number, because the mean of its divisors is an integer number (1416686284).

Almost surely, 2^5666564737 is an apocalyptic number.

It is an amenable number.

5666564737 is a deficient number, since it is larger than the sum of its proper divisors (180399).

5666564737 is a wasteful number, since it uses less digits than its factorization.

5666564737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180398.

The product of its digits is 19051200, while the sum is 55.

The square root of 5666564737 is about 75276.5882396380. The cubic root of 5666564737 is about 1782.8163907626.

The spelling of 5666564737 in words is "five billion, six hundred sixty-six million, five hundred sixty-four thousand, seven hundred thirty-seven".