166200080 has 40 divisors (see below), whose sum is σ = 387462552. Its totient is φ = 66299904.

The previous prime is 166200077. The next prime is 166200157. The reversal of 166200080 is 80002661.

It can be written as a sum of positive squares in 4 ways, for example, as 69689104 + 96510976 = 8348^2 + 9824^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29144 + ... + 34376.

Almost surely, 2^166200080 is an apocalyptic number.

166200080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166200080 is an abundant number, since it is smaller than the sum of its proper divisors (221262472).

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

166200080 is a wasteful number, since it uses less digits than its factorization.

166200080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5643 (or 5637 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 166200080 is about 12891.8609983198. The cubic root of 166200080 is about 549.8071830996.

The spelling of 166200080 in words is "one hundred sixty-six million, two hundred thousand, eighty".