166089120 has 96 divisors (see below), whose sum is σ = 525813120. Its totient is φ = 44067840.

The previous prime is 166089109. The next prime is 166089137. The reversal of 166089120 is 21980661.

It is a tau number, because it is divible by the number of its divisors (96).

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, 109165 + ... + 110675.

It is an arithmetic number, because the mean of its divisors is an integer number (5477220).

Almost surely, 2^166089120 is an apocalyptic number.

166089120 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 166089120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262906560).

166089120 is an abundant number, since it is smaller than the sum of its proper divisors (359724000).

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

166089120 is a wasteful number, since it uses less digits than its factorization.

166089120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758 (or 1750 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 166089120 is about 12887.5567893996. The cubic root of 166089120 is about 549.6848001126.

The spelling of 166089120 in words is "one hundred sixty-six million, eighty-nine thousand, one hundred twenty".