189668160 has 168 divisors, whose sum is σ = 711805536. Its totient is φ = 45972480.

The previous prime is 189668159. The next prime is 189668183. The reversal of 189668160 is 61866981.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28687 + ... + 34673.

Almost surely, 2^189668160 is an apocalyptic number.

189668160 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 189668160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (355902768).

189668160 is an abundant number, since it is smaller than the sum of its proper divisors (522137376).

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

189668160 is a wasteful number, since it uses less digits than its factorization.

189668160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6021 (or 6008 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 189668160 is about 13772.0063897749. The cubic root of 189668160 is about 574.5548261910.

The spelling of 189668160 in words is "one hundred eighty-nine million, six hundred sixty-eight thousand, one hundred sixty".