166884012 has 36 divisors (see below), whose sum is σ = 424049080. Its totient is φ = 55337472.

The previous prime is 166884007. The next prime is 166884043. The reversal of 166884012 is 210488661.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×166884012² = 55700546922432288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5062 + ... + 18957.

Almost surely, 2^166884012 is an apocalyptic number.

166884012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166884012 is an abundant number, since it is smaller than the sum of its proper divisors (257165068).

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

166884012 is a wasteful number, since it uses less digits than its factorization.

166884012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24222 (or 24217 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 166884012 is about 12918.3594933722. The cubic root of 166884012 is about 550.5603237307.

The spelling of 166884012 in words is "one hundred sixty-six million, eight hundred eighty-four thousand, twelve".