99099999100 has 72 divisors (see below), whose sum is σ = 216046033280. Its totient is φ = 39456227520.

The previous prime is 99099999083. The next prime is 99099999101. The reversal of 99099999100 is 199999099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99099999101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27843121 + ... + 27846679.

Almost surely, 2^99099999100 is an apocalyptic number.

It is an amenable number.

99099999100 is an abundant number, since it is smaller than the sum of its proper divisors (116946034180).

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

99099999100 is a wasteful number, since it uses less digits than its factorization.

99099999100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4787 (or 4780 counting only the distinct ones).

The product of its (nonzero) digits is 4782969, while the sum is 64.

The spelling of 99099999100 in words is "ninety-nine billion, ninety-nine million, nine hundred ninety-nine thousand, one hundred".