166631092 has 12 divisors (see below), whose sum is σ = 291710916. Its totient is φ = 83285120.

The previous prime is 166631089. The next prime is 166631117. The reversal of 166631092 is 290136661.

It can be written as a sum of positive squares in 2 ways, for example, as 132572196 + 34058896 = 11514^2 + 5836^2 .

It is a super-2 number, since 2×166631092² = 55531841642224928, which contains 22 as substring.

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, 8508 + ... + 20140.

It is an arithmetic number, because the mean of its divisors is an integer number (24309243).

Almost surely, 2^166631092 is an apocalyptic number.

It is an amenable number.

166631092 is a deficient number, since it is larger than the sum of its proper divisors (125079824).

166631092 is a wasteful number, since it uses less digits than its factorization.

166631092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15218 (or 15216 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 166631092 is about 12908.5666129125. The cubic root of 166631092 is about 550.2820503758.

The spelling of 166631092 in words is "one hundred sixty-six million, six hundred thirty-one thousand, ninety-two".