90099099009 has 32 divisors (see below), whose sum is σ = 136296704640. Its totient is φ = 58810634496.

The previous prime is 90099098981. The next prime is 90099099037.

90099099009 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (90099098981) and next prime (90099099037).

It is not a de Polignac number, because 90099099009 - 2²⁰ = 90098050433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90099099089) 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 31 ways as a sum of consecutive naturals, for example, 103194 + ... + 436860.

It is an arithmetic number, because the mean of its divisors is an integer number (4259272020).

Almost surely, 2^90099099009 is an apocalyptic number.

It is an amenable number.

90099099009 is a deficient number, since it is larger than the sum of its proper divisors (46197605631).

90099099009 is a wasteful number, since it uses less digits than its factorization.

90099099009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333886 (or 333880 counting only the distinct ones).

The product of its (nonzero) digits is 531441, while the sum is 54.

It can be divided in two parts, 900990 and 99009, that added together give a palindrome (999999).

The spelling of 90099099009 in words is "ninety billion, ninety-nine million, ninety-nine thousand, nine".