557664166 has 8 divisors (see below), whose sum is σ = 839024424. Its totient is φ = 277989360.

The previous prime is 557664143. The next prime is 557664203. The reversal of 557664166 is 661466755.

557664166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 420535 + ... + 421858.

It is an arithmetic number, because the mean of its divisors is an integer number (104878053).

Almost surely, 2^557664166 is an apocalyptic number.

557664166 is a deficient number, since it is larger than the sum of its proper divisors (281360258).

557664166 is a wasteful number, since it uses less digits than its factorization.

557664166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842726.

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

The square root of 557664166 is about 23614.9140587045. The cubic root of 557664166 is about 823.1094344748.

The spelling of 557664166 in words is "five hundred fifty-seven million, six hundred sixty-four thousand, one hundred sixty-six".