99099000081 has 12 divisors (see below), whose sum is σ = 143287456000. Its totient is φ = 65999328120.

The previous prime is 99099000067. The next prime is 99099000107. The reversal of 99099000081 is 18000099099.

It is not a de Polignac number, because 99099000081 - 2⁹ = 99098999569 is a prime.

It is a super-2 number, since 2×99099000081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99099000041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5546581 + ... + 5564418.

Almost surely, 2^99099000081 is an apocalyptic number.

It is an amenable number.

99099000081 is a deficient number, since it is larger than the sum of its proper divisors (44188455919).

99099000081 is a wasteful number, since it uses less digits than its factorization.

99099000081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111996 (or 11111993 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 45.

The spelling of 99099000081 in words is "ninety-nine billion, ninety-nine million, eighty-one", and thus it is an aban number and an uban number.