166800880 has 20 divisors (see below), whose sum is σ = 387812232. Its totient is φ = 66720320.

The previous prime is 166800877. The next prime is 166800883. The reversal of 166800880 is 88008661.

It is an interprime number because it is at equal distance from previous prime (166800877) and next prime (166800883).

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×166800880³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166800883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1042426 + ... + 1042585.

Almost surely, 2^166800880 is an apocalyptic number.

166800880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166800880 is an abundant number, since it is smaller than the sum of its proper divisors (221011352).

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

166800880 is a wasteful number, since it uses less digits than its factorization.

166800880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085024 (or 2085018 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 166800880 is about 12915.1415013541. The cubic root of 166800880 is about 550.4688894021.

The spelling of 166800880 in words is "one hundred sixty-six million, eight hundred thousand, eight hundred eighty".