166677057 has 12 divisors (see below), whose sum is σ = 241038720. Its totient is φ = 110987448.

The previous prime is 166677041. The next prime is 166677059. The reversal of 166677057 is 750776661.

166677057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166677057 - 2⁴ = 166677041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166677059) 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, 2457 + ... + 18422.

It is an arithmetic number, because the mean of its divisors is an integer number (20086560).

Almost surely, 2^166677057 is an apocalyptic number.

It is an amenable number.

166677057 is a deficient number, since it is larger than the sum of its proper divisors (74361663).

166677057 is a wasteful number, since it uses less digits than its factorization.

166677057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21772 (or 21769 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 166677057 is about 12910.3468969660. The cubic root of 166677057 is about 550.3326439531.

The spelling of 166677057 in words is "one hundred sixty-six million, six hundred seventy-seven thousand, fifty-seven".