99090999909099 has 48 divisors (see below), whose sum is σ = 158483710180224. Its totient is φ = 59155140844800.

The previous prime is 99090999908981. The next prime is 99090999909103.

99090999909099 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 99090999909099 - 2⁴⁴ = 81498813864683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99090999909599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 108545544 + ... + 109454634.

It is an arithmetic number, because the mean of its divisors is an integer number (3301743962088).

Almost surely, 2^{99090999909099} is an apocalyptic number.

99090999909099 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

99090999909099 is a deficient number, since it is larger than the sum of its proper divisors (59392710271125).

99090999909099 is a wasteful number, since it uses less digits than its factorization.

99090999909099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925608 (or 925605 counting only the distinct ones).

The product of its (nonzero) digits is 3486784401, while the sum is 90.

The spelling of 99090999909099 in words is "ninety-nine trillion, ninety billion, nine hundred ninety-nine million, nine hundred nine thousand, ninety-nine".