557166664 has 16 divisors (see below), whose sum is σ = 1048463100. Its totient is φ = 277576512.

The previous prime is 557166661. The next prime is 557166679. The reversal of 557166664 is 466661755.

It can be written as a sum of positive squares in 2 ways, for example, as 456164164 + 101002500 = 21358^2 + 10050^2 .

It is not an unprimeable number, because it can be changed into a prime (557166661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123499 + ... + 127930.

Almost surely, 2^557166664 is an apocalyptic number.

It is an amenable number.

557166664 is a deficient number, since it is larger than the sum of its proper divisors (491296436).

557166664 is a wasteful number, since it uses less digits than its factorization.

557166664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251712 (or 251708 counting only the distinct ones).

The product of its digits is 907200, while the sum is 46.

The square root of 557166664 is about 23604.3780684855. The cubic root of 557166664 is about 822.8645915216.

The spelling of 557166664 in words is "five hundred fifty-seven million, one hundred sixty-six thousand, six hundred sixty-four".