99681715112 has 16 divisors (see below), whose sum is σ = 213603675360. Its totient is φ = 42720735024.

The previous prime is 99681715033. The next prime is 99681715153. The reversal of 99681715112 is 21151718699.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 890015258 + ... + 890015369.

It is an arithmetic number, because the mean of its divisors is an integer number (13350229710).

Almost surely, 2^99681715112 is an apocalyptic number.

It is an amenable number.

99681715112 is an abundant number, since it is smaller than the sum of its proper divisors (113921960248).

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

99681715112 is a wasteful number, since it uses less digits than its factorization.

99681715112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780030640 (or 1780030636 counting only the distinct ones).

The product of its digits is 272160, while the sum is 50.

The spelling of 99681715112 in words is "ninety-nine billion, six hundred eighty-one million, seven hundred fifteen thousand, one hundred twelve".