166182172 has 24 divisors (see below), whose sum is σ = 313974752. Its totient is φ = 76507200.

The previous prime is 166182161. The next prime is 166182179. The reversal of 166182172 is 271281661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166182179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18097 + ... + 25687.

Almost surely, 2^166182172 is an apocalyptic number.

It is an amenable number.

166182172 is a deficient number, since it is larger than the sum of its proper divisors (147792580).

166182172 is a wasteful number, since it uses less digits than its factorization.

166182172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8029 (or 8027 counting only the distinct ones).

The product of its digits is 8064, while the sum is 34.

The square root of 166182172 is about 12891.1664328718. The cubic root of 166182172 is about 549.7874352136.

The spelling of 166182172 in words is "one hundred sixty-six million, one hundred eighty-two thousand, one hundred seventy-two".