166913860 has 48 divisors (see below), whose sum is σ = 371246400. Its totient is φ = 62861184.

The previous prime is 166913849. The next prime is 166913861. The reversal of 166913860 is 68319661.

It is not an unprimeable number, because it can be changed into a prime (166913861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64471 + ... + 67009.

It is an arithmetic number, because the mean of its divisors is an integer number (7734300).

Almost surely, 2^166913860 is an apocalyptic number.

166913860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166913860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185623200).

166913860 is an abundant number, since it is smaller than the sum of its proper divisors (204332540).

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

166913860 is a wasteful number, since it uses less digits than its factorization.

166913860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740 (or 2738 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 166913860 is about 12919.5146967678. The cubic root of 166913860 is about 550.5931452190.

The spelling of 166913860 in words is "one hundred sixty-six million, nine hundred thirteen thousand, eight hundred sixty".