166576880 has 80 divisors (see below), whose sum is σ = 417991104. Its totient is φ = 61501440.

The previous prime is 166576871. The next prime is 166576901. The reversal of 166576880 is 88675661.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 70925 + ... + 73235.

Almost surely, 2^166576880 is an apocalyptic number.

166576880 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 166576880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208995552).

166576880 is an abundant number, since it is smaller than the sum of its proper divisors (251414224).

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

166576880 is a wasteful number, since it uses less digits than its factorization.

166576880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394 (or 2388 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 166576880 is about 12906.4665962455. The cubic root of 166576880 is about 550.2223673841. Note that the first 3 decimals are identical.

The spelling of 166576880 in words is "one hundred sixty-six million, five hundred seventy-six thousand, eight hundred eighty".