99387165328 has 80 divisors (see below), whose sum is σ = 217541165760. Its totient is φ = 43572211200.

The previous prime is 99387165289. The next prime is 99387165343. The reversal of 99387165328 is 82356178399.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5078923 + ... + 5098453.

It is an arithmetic number, because the mean of its divisors is an integer number (2719264572).

Almost surely, 2^99387165328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99387165328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108770582880).

99387165328 is an abundant number, since it is smaller than the sum of its proper divisors (118154000432).

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

99387165328 is a wasteful number, since it uses less digits than its factorization.

99387165328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20576 (or 20570 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 61.

The spelling of 99387165328 in words is "ninety-nine billion, three hundred eighty-seven million, one hundred sixty-five thousand, three hundred twenty-eight".