99176870520 has 768 divisors, whose sum is σ = 431485367040. Its totient is φ = 19158073344.

The previous prime is 99176870489. The next prime is 99176870543. The reversal of 99176870520 is 2507867199.

It is a super-2 number, since 2×99176870520² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 20603634 + ... + 20608446.

It is an arithmetic number, because the mean of its divisors is an integer number (561829905).

Almost surely, 2^99176870520 is an apocalyptic number.

99176870520 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 99176870520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215742683520).

99176870520 is an abundant number, since it is smaller than the sum of its proper divisors (332308496520).

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

99176870520 is a wasteful number, since it uses less digits than its factorization.

99176870520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4904 (or 4897 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 54.

The spelling of 99176870520 in words is "ninety-nine billion, one hundred seventy-six million, eight hundred seventy thousand, five hundred twenty".