9990099900999 has 60 divisors (see below), whose sum is σ = 15832491584448. Its totient is φ = 6271028294400.

The previous prime is 9990099900973. The next prime is 9990099901037.

9990099900999 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9990099900999 - 2⁷ = 9990099900871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

9990099900999 is a modest number, since divided by 99900999 gives 999 as remainder.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9990099900919) 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 59 ways as a sum of consecutive naturals, for example, 1984479 + ... + 4890639.

Almost surely, 2^{9990099900999} is an apocalyptic number.

9990099900999 is a deficient number, since it is larger than the sum of its proper divisors (5842391683449).

9990099900999 is a wasteful number, since it uses less digits than its factorization.

9990099900999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906278 (or 2906232 counting only the distinct ones).

The product of its (nonzero) digits is 387420489, while the sum is 81.

The spelling of 9990099900999 in words is "nine trillion, nine hundred ninety billion, ninety-nine million, nine hundred thousand, nine hundred ninety-nine".