166172324 has 6 divisors (see below), whose sum is σ = 290801574. Its totient is φ = 83086160.

The previous prime is 166172317. The next prime is 166172389. The reversal of 166172324 is 423271661.

166172324 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 159567424 + 6604900 = 12632^2 + 2570^2 .

It is a super-2 number, since 2×166172324² = 55226482527121952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20771537 + ... + 20771544.

It is an arithmetic number, because the mean of its divisors is an integer number (48466929).

Almost surely, 2^166172324 is an apocalyptic number.

It is an amenable number.

166172324 is a deficient number, since it is larger than the sum of its proper divisors (124629250).

166172324 is a wasteful number, since it uses less digits than its factorization.

166172324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41543085 (or 41543083 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 166172324 is about 12890.7844602258. The cubic root of 166172324 is about 549.7765748155.

The spelling of 166172324 in words is "one hundred sixty-six million, one hundred seventy-two thousand, three hundred twenty-four".