172316166 has 32 divisors (see below), whose sum is σ = 388094976. Its totient is φ = 50532000.

The previous prime is 172316159. The next prime is 172316171. The reversal of 172316166 is 661613271.

It is a super-2 number, since 2×172316166² = 59385722129879112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40065 + ... + 44156.

It is an arithmetic number, because the mean of its divisors is an integer number (12127968).

Almost surely, 2^172316166 is an apocalyptic number.

172316166 is an abundant number, since it is smaller than the sum of its proper divisors (215778810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172316166 is a wasteful number, since it uses less digits than its factorization.

172316166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84268.

The product of its digits is 9072, while the sum is 33.

The square root of 172316166 is about 13126.9252302281. The cubic root of 172316166 is about 556.4703225860.

The spelling of 172316166 in words is "one hundred seventy-two million, three hundred sixteen thousand, one hundred sixty-six".