99811085719744 has 224 divisors, whose sum is σ = 237761274844800. Its totient is φ = 41536363954176.

The previous prime is 99811085719693. The next prime is 99811085719757. The reversal of 99811085719744 is 44791758011899.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×99811085719744² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112413024 + ... + 113297440.

It is an arithmetic number, because the mean of its divisors is an integer number (1061434262700).

Almost surely, 2^{99811085719744} 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 99811085719744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118880637422400).

99811085719744 is an abundant number, since it is smaller than the sum of its proper divisors (137950189125056).

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

99811085719744 is an equidigital number, since it uses as much as digits as its factorization.

99811085719744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884600 (or 884576 counting only the distinct ones).

The product of its (nonzero) digits is 182891520, while the sum is 73.

The spelling of 99811085719744 in words is "ninety-nine trillion, eight hundred eleven billion, eighty-five million, seven hundred nineteen thousand, seven hundred forty-four".