166957944 has 16 divisors (see below), whose sum is σ = 417394920. Its totient is φ = 55652640.

The previous prime is 166957937. The next prime is 166957957. The reversal of 166957944 is 449759661.

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, 3478267 + ... + 3478314.

Almost surely, 2^166957944 is an apocalyptic number.

It is an amenable number.

166957944 is an abundant number, since it is smaller than the sum of its proper divisors (250436976).

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

166957944 is a wasteful number, since it uses less digits than its factorization.

166957944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6956590 (or 6956586 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The square root of 166957944 is about 12921.2206853687. The cubic root of 166957944 is about 550.6416137557.

The spelling of 166957944 in words is "one hundred sixty-six million, nine hundred fifty-seven thousand, nine hundred forty-four".