166180 has 24 divisors (see below), whose sum is σ = 399168. Its totient is φ = 56928.

The previous prime is 166169. The next prime is 166183. The reversal of 166180 is 81661.

It is not an unprimeable number, because it can be changed into a prime (166183) by changing a digit.

166180 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454 + ... + 733.

It is an arithmetic number, because the mean of its divisors is an integer number (16632).

2¹⁶⁶¹⁸⁰ is an apocalyptic number.

166180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166180 is an abundant number, since it is smaller than the sum of its proper divisors (232988).

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

166180 is a wasteful number, since it uses less digits than its factorization.

166180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203 (or 1201 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 166180 is about 407.6518122123. The cubic root of 166180 is about 54.9785039964.

The spelling of 166180 in words is "one hundred sixty-six thousand, one hundred eighty".