166913793 has 12 divisors (see below), whose sum is σ = 242578960. Its totient is φ = 110592216.

The previous prime is 166913759. The next prime is 166913797. The reversal of 166913793 is 397319661.

166913793 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 166913793 - 2²² = 162719489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166913797) 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, 55423 + ... + 58356.

Almost surely, 2^166913793 is an apocalyptic number.

It is an amenable number.

166913793 is a deficient number, since it is larger than the sum of its proper divisors (75665167).

166913793 is a wasteful number, since it uses less digits than its factorization.

166913793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113948 (or 113945 counting only the distinct ones).

The product of its digits is 183708, while the sum is 45.

The square root of 166913793 is about 12919.5121037909. The cubic root of 166913793 is about 550.5930715488.

The spelling of 166913793 in words is "one hundred sixty-six million, nine hundred thirteen thousand, seven hundred ninety-three".