566054655921 has 12 divisors (see below), whose sum is σ = 819480184848. Its totient is φ = 376517917464.

The previous prime is 566054655919. The next prime is 566054655923. The reversal of 566054655921 is 129556450665.

It is a happy number.

566054655921 is a `hidden beast` number, since 5 + 6 + 6 + 0 + 5 + 46 + 5 + 592 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (566054655919) and next prime (566054655923).

It is not a de Polignac number, because 566054655921 - 2¹ = 566054655919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (566054655923) 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, 70983555 + ... + 70991528.

It is an arithmetic number, because the mean of its divisors is an integer number (68290015404).

Almost surely, 2^566054655921 is an apocalyptic number.

It is an amenable number.

566054655921 is a deficient number, since it is larger than the sum of its proper divisors (253425528927).

566054655921 is a wasteful number, since it uses less digits than its factorization.

566054655921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141975532 (or 141975529 counting only the distinct ones).

The product of its (nonzero) digits is 9720000, while the sum is 54.

The spelling of 566054655921 in words is "five hundred sixty-six billion, fifty-four million, six hundred fifty-five thousand, nine hundred twenty-one".