99015320888 has 64 divisors (see below), whose sum is σ = 204885918720. Its totient is φ = 44484940800.

The previous prime is 99015320821. The next prime is 99015320891. The reversal of 99015320888 is 88802351099.

It is a Cunningham number, because it is equal to 314667²-1.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6915545 + ... + 6929847.

It is an arithmetic number, because the mean of its divisors is an integer number (3201342480).

Almost surely, 2^99015320888 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 99015320888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102442959360).

99015320888 is an abundant number, since it is smaller than the sum of its proper divisors (105870597832).

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

99015320888 is a wasteful number, since it uses less digits than its factorization.

99015320888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15228 (or 15224 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 53.

The spelling of 99015320888 in words is "ninety-nine billion, fifteen million, three hundred twenty thousand, eight hundred eighty-eight".