557204166 has 24 divisors (see below), whose sum is σ = 1224282384. Its totient is φ = 183118320.

The previous prime is 557204159. The next prime is 557204171. The reversal of 557204166 is 661402755.

It is a happy number.

557204166 is a `hidden beast` number, since 557 + 2 + 0 + 41 + 66 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 557204166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216721 + ... + 219276.

It is an arithmetic number, because the mean of its divisors is an integer number (51011766).

Almost surely, 2^557204166 is an apocalyptic number.

557204166 is an abundant number, since it is smaller than the sum of its proper divisors (667078218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

557204166 is a wasteful number, since it uses less digits than its factorization.

557204166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436076 (or 436073 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 557204166 is about 23605.1724416493. The cubic root of 557204166 is about 822.8830530087.

The spelling of 557204166 in words is "five hundred fifty-seven million, two hundred four thousand, one hundred sixty-six".