99831396188160 has 1440 divisors, whose sum is σ = 439267502580480. Its totient is φ = 21062775472128.

The previous prime is 99831396188131. The next prime is 99831396188177. The reversal of 99831396188160 is 6188169313899.

99831396188160 is a `hidden beast` number, since 9 + 98 + 3 + 1 + 396 + 18 + 81 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a Harshad number since it is a multiple of its sum of digits (72).

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 95 ways as a sum of consecutive naturals, for example, 2616587644 + ... + 2616625796.

It is an arithmetic number, because the mean of its divisors is an integer number (305046876792).

Almost surely, 2^{99831396188160} is an apocalyptic number.

99831396188160 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 99831396188160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219633751290240).

99831396188160 is an abundant number, since it is smaller than the sum of its proper divisors (339436106392320).

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

99831396188160 is a wasteful number, since it uses less digits than its factorization.

99831396188160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38228 (or 38183 counting only the distinct ones).

The product of its (nonzero) digits is 120932352, while the sum is 72.

The spelling of 99831396188160 in words is "ninety-nine trillion, eight hundred thirty-one billion, three hundred ninety-six million, one hundred eighty-eight thousand, one hundred sixty".