166274180 has 24 divisors (see below), whose sum is σ = 349419840. Its totient is φ = 66463200.

The previous prime is 166274177. The next prime is 166274191. The reversal of 166274180 is 81472661.

It is a self number, because there is not a number n which added to its sum of digits gives 166274180.

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 7 ways as a sum of consecutive naturals, for example, 49391 + ... + 52649.

It is an arithmetic number, because the mean of its divisors is an integer number (14559160).

Almost surely, 2^166274180 is an apocalyptic number.

166274180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166274180 is an abundant number, since it is smaller than the sum of its proper divisors (183145660).

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

166274180 is a wasteful number, since it uses less digits than its factorization.

166274180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5819 (or 5817 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 166274180 is about 12894.7345843177. The cubic root of 166274180 is about 549.8888811330. Note that the first 5 decimals are identical.

The spelling of 166274180 in words is "one hundred sixty-six million, two hundred seventy-four thousand, one hundred eighty".