189596660 has 24 divisors (see below), whose sum is σ = 434349216. Its totient is φ = 68944160.

The previous prime is 189596647. The next prime is 189596663. The reversal of 189596660 is 66695981.

189596660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 189596599 and 189596608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189596663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430682 + ... + 431121.

It is an arithmetic number, because the mean of its divisors is an integer number (18097884).

Almost surely, 2^189596660 is an apocalyptic number.

189596660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189596660 is an abundant number, since it is smaller than the sum of its proper divisors (244752556).

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

189596660 is a wasteful number, since it uses less digits than its factorization.

189596660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861823 (or 861821 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 189596660 is about 13769.4102996461. The cubic root of 189596660 is about 574.4826196712.

The spelling of 189596660 in words is "one hundred eighty-nine million, five hundred ninety-six thousand, six hundred sixty".