166606880 has 96 divisors (see below), whose sum is σ = 432589248. Its totient is φ = 60134400.

The previous prime is 166606879. The next prime is 166606939. The reversal of 166606880 is 88606661.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318299 + ... + 318821.

It is an arithmetic number, because the mean of its divisors is an integer number (4506138).

Almost surely, 2^166606880 is an apocalyptic number.

166606880 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 166606880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216294624).

166606880 is an abundant number, since it is smaller than the sum of its proper divisors (265982368).

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

166606880 is a wasteful number, since it uses less digits than its factorization.

166606880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 722 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 166606880 is about 12907.6287520210. The cubic root of 166606880 is about 550.2553965379.

The spelling of 166606880 in words is "one hundred sixty-six million, six hundred six thousand, eight hundred eighty".