166945075 has 24 divisors (see below), whose sum is σ = 233127936. Its totient is φ = 117492000.

The previous prime is 166945027. The next prime is 166945127. The reversal of 166945075 is 570549661.

It is not a de Polignac number, because 166945075 - 2²⁵ = 133390643 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1267 + ... + 18316.

It is an arithmetic number, because the mean of its divisors is an integer number (9713664).

Almost surely, 2^166945075 is an apocalyptic number.

166945075 is a deficient number, since it is larger than the sum of its proper divisors (66182861).

166945075 is a wasteful number, since it uses less digits than its factorization.

166945075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19635 (or 19630 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 166945075 is about 12920.7226965058. The cubic root of 166945075 is about 550.6274657038.

The spelling of 166945075 in words is "one hundred sixty-six million, nine hundred forty-five thousand, seventy-five".