166518880 has 48 divisors (see below), whose sum is σ = 429169104. Its totient is φ = 60551680.

The previous prime is 166518839. The next prime is 166518883. The reversal of 166518880 is 88815661.

It is a happy number.

166518880 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166518883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45547 + ... + 49066.

It is an arithmetic number, because the mean of its divisors is an integer number (8941023).

Almost surely, 2^166518880 is an apocalyptic number.

166518880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166518880 is an abundant number, since it is smaller than the sum of its proper divisors (262650224).

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

166518880 is a wasteful number, since it uses less digits than its factorization.

166518880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94639 (or 94631 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 43.

The square root of 166518880 is about 12904.2194649657. The cubic root of 166518880 is about 550.1584997735.

The spelling of 166518880 in words is "one hundred sixty-six million, five hundred eighteen thousand, eight hundred eighty".