189912165760 has 32 divisors (see below), whose sum is σ = 454008772800. Its totient is φ = 75964866048.

The previous prime is 189912165757. The next prime is 189912165767. The reversal of 189912165760 is 67561219981.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189912165767) 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, 148368240 + ... + 148369519.

It is an arithmetic number, because the mean of its divisors is an integer number (14187774150).

Almost surely, 2^189912165760 is an apocalyptic number.

189912165760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189912165760 is an abundant number, since it is smaller than the sum of its proper divisors (264096607040).

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

189912165760 is an equidigital number, since it uses as much as digits as its factorization.

189912165760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296737778 (or 296737766 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 55.

The spelling of 189912165760 in words is "one hundred eighty-nine billion, nine hundred twelve million, one hundred sixty-five thousand, seven hundred sixty".