166280100 has 72 divisors (see below), whose sum is σ = 549839808. Its totient is φ = 38006400.

The previous prime is 166280071. The next prime is 166280123. The reversal of 166280100 is 1082661.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37491 + ... + 41690.

It is an arithmetic number, because the mean of its divisors is an integer number (7636664).

Almost surely, 2^166280100 is an apocalyptic number.

166280100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166280100 is an abundant number, since it is smaller than the sum of its proper divisors (383559708).

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

166280100 is a wasteful number, since it uses less digits than its factorization.

166280100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79205 (or 79198 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 166280100 is about 12894.9641333352. The cubic root of 166280100 is about 549.8954071082.

The spelling of 166280100 in words is "one hundred sixty-six million, two hundred eighty thousand, one hundred".