99988522920 has 384 divisors, whose sum is σ = 383810918400. Its totient is φ = 22255718400.

The previous prime is 99988522919. The next prime is 99988522951. The reversal of 99988522920 is 2922588999.

99988522920 is a `hidden beast` number, since 9 + 9 + 9 + 88 + 522 + 9 + 20 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9827596 + ... + 9837764.

It is an arithmetic number, because the mean of its divisors is an integer number (999507600).

Almost surely, 2^99988522920 is an apocalyptic number.

99988522920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99988522920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191905459200).

99988522920 is an abundant number, since it is smaller than the sum of its proper divisors (283822395480).

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

99988522920 is a wasteful number, since it uses less digits than its factorization.

99988522920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10401 (or 10394 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 63.

The spelling of 99988522920 in words is "ninety-nine billion, nine hundred eighty-eight million, five hundred twenty-two thousand, nine hundred twenty".