166607157 has 16 divisors (see below), whose sum is σ = 235500480. Its totient is φ = 104408832.

The previous prime is 166607141. The next prime is 166607159. The reversal of 166607157 is 751706661.

It is not a de Polignac number, because 166607157 - 2⁴ = 166607141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166607159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55819 + ... + 58727.

It is an arithmetic number, because the mean of its divisors is an integer number (14718780).

Almost surely, 2^166607157 is an apocalyptic number.

166607157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

166607157 is a deficient number, since it is larger than the sum of its proper divisors (68893323).

166607157 is a wasteful number, since it uses less digits than its factorization.

166607157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4052.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 166607157 is about 12907.6394821052. The cubic root of 166607157 is about 550.2557014886.

The spelling of 166607157 in words is "one hundred sixty-six million, six hundred seven thousand, one hundred fifty-seven".