189167664 has 80 divisors (see below), whose sum is σ = 571526912. Its totient is φ = 52786944.

The previous prime is 189167659. The next prime is 189167669. The reversal of 189167664 is 466761981.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (189167659) and next prime (189167669).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (189167669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7902 + ... + 20994.

Almost surely, 2^189167664 is an apocalyptic number.

189167664 is a gapful number since it is divisible by the number (14) 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 189167664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285763456).

189167664 is an abundant number, since it is smaller than the sum of its proper divisors (382359248).

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

189167664 is a wasteful number, since it uses less digits than its factorization.

189167664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13154 (or 13148 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 189167664 is about 13753.8236138174. The cubic root of 189167664 is about 574.0490029267.

The spelling of 189167664 in words is "one hundred eighty-nine million, one hundred sixty-seven thousand, six hundred sixty-four".