99311959044 has 81 divisors (see below), whose sum is σ = 256122957909. Its totient is φ = 32446608480.

The previous prime is 99311959039. The next prime is 99311959051. The reversal of 99311959044 is 44095911399.

It is a happy number.

The square root of 99311959044 is 315138.

It is a perfect power (a square), and thus also a powerful number.

99311959044 is a `hidden beast` number, since 9 + 9 + 3 + 1 + 1 + 9 + 590 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 71593704900 + 27718254144 = 267570^2 + 166488^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 100213389 + ... + 100214379.

Almost surely, 2^99311959044 is an apocalyptic number.

99311959044 is the 315138-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99311959044

99311959044 is an abundant number, since it is smaller than the sum of its proper divisors (156810998865).

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

99311959044 is an equidigital number, since it uses as much as digits as its factorization.

99311959044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 54.

The spelling of 99311959044 in words is "ninety-nine billion, three hundred eleven million, nine hundred fifty-nine thousand, forty-four".