99115518 has 16 divisors (see below), whose sum is σ = 198558720. Its totient is φ = 32983896.

The previous prime is 99115501. The next prime is 99115543. The reversal of 99115518 is 81551199.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9630 + ... + 17057.

It is an arithmetic number, because the mean of its divisors is an integer number (12409920).

Almost surely, 2^99115518 is an apocalyptic number.

99115518 is an abundant number, since it is smaller than the sum of its proper divisors (99443202).

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

99115518 is a wasteful number, since it uses less digits than its factorization.

99115518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27311.

The product of its digits is 16200, while the sum is 39.

The square root of 99115518 is about 9955.6776765823. The cubic root of 99115518 is about 462.7863615446.

The spelling of 99115518 in words is "ninety-nine million, one hundred fifteen thousand, five hundred eighteen".