99090000009100 has 36 divisors (see below), whose sum is σ = 215100458033328. Its totient is φ = 39622145992000.

The previous prime is 99090000009079. The next prime is 99090000009137. The reversal of 99090000009100 is 190000009099.

It is a self number, because there is not a number n which added to its sum of digits gives 99090000009100.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172887616 + ... + 173459815.

It is an arithmetic number, because the mean of its divisors is an integer number (5975012723148).

Almost surely, 2^{99090000009100} is an apocalyptic number.

It is an amenable number.

99090000009100 is an abundant number, since it is smaller than the sum of its proper divisors (116010458024228).

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

99090000009100 is a wasteful number, since it uses less digits than its factorization.

99090000009100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346350306 (or 346350299 counting only the distinct ones).

The product of its (nonzero) digits is 6561, while the sum is 37.

The spelling of 99090000009100 in words is "ninety-nine trillion, ninety billion, nine thousand, one hundred".