189515647216 has 40 divisors (see below), whose sum is σ = 444326605920. Its totient is φ = 76443285504.

The previous prime is 189515647171. The next prime is 189515647271. The reversal of 189515647216 is 612746515981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49765861 + ... + 49769668.

It is an arithmetic number, because the mean of its divisors is an integer number (11108165148).

Almost surely, 2^189515647216 is an apocalyptic number.

189515647216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

189515647216 is an abundant number, since it is smaller than the sum of its proper divisors (254810958704).

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

189515647216 is a wasteful number, since it uses less digits than its factorization.

189515647216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99535561 (or 99535555 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 55.

The spelling of 189515647216 in words is "one hundred eighty-nine billion, five hundred fifteen million, six hundred forty-seven thousand, two hundred sixteen".