90009000099 has 6 divisors (see below), whose sum is σ = 130013000156. Its totient is φ = 60006000060.

The previous prime is 90009000097. The next prime is 90009000131. The reversal of 90009000099 is 99000090009.

It is not a de Polignac number, because 90009000099 - 2¹ = 90009000097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90009000097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5000499997 + ... + 5000500014.

Almost surely, 2^90009000099 is an apocalyptic number.

90009000099 is a deficient number, since it is larger than the sum of its proper divisors (40004000057).

90009000099 is a wasteful number, since it uses less digits than its factorization.

90009000099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10001000017 (or 10001000014 counting only the distinct ones).

The product of its (nonzero) digits is 6561, while the sum is 36.

The spelling of 90009000099 in words is "ninety billion, nine million, ninety-nine", and thus it is an aban number and an uban number.