99061818 has 16 divisors (see below), whose sum is σ = 198452160. Its totient is φ = 32965856.

The previous prime is 99061817. The next prime is 99061829. The reversal of 99061818 is 81816099.

It is a self number, because there is not a number n which added to its sum of digits gives 99061818.

It is not an unprimeable number, because it can be changed into a prime (99061817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9678 + ... + 17081.

It is an arithmetic number, because the mean of its divisors is an integer number (12403260).

Almost surely, 2^99061818 is an apocalyptic number.

99061818 is an abundant number, since it is smaller than the sum of its proper divisors (99390342).

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

99061818 is a wasteful number, since it uses less digits than its factorization.

99061818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27381.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 99061818 is about 9952.9803576617. The cubic root of 99061818 is about 462.7027684551.

The spelling of 99061818 in words is "ninety-nine million, sixty-one thousand, eight hundred eighteen".