166150800 has 90 divisors (see below), whose sum is σ = 576601922. Its totient is φ = 44305920.

The previous prime is 166150799. The next prime is 166150823. The reversal of 166150800 is 8051661.

It can be written as a sum of positive squares in 3 ways, for example, as 39992976 + 126157824 = 6324^2 + 11232^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19477 + ... + 26676.

Almost surely, 2^166150800 is an apocalyptic number.

166150800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166150800 is an abundant number, since it is smaller than the sum of its proper divisors (410451122).

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

166150800 is a wasteful number, since it uses less digits than its factorization.

166150800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46177 (or 46163 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 166150800 is about 12889.9495732140. The cubic root of 166150800 is about 549.7528366028.

The spelling of 166150800 in words is "one hundred sixty-six million, one hundred fifty thousand, eight hundred".