9990099901000 has 64 divisors (see below), whose sum is σ = 23413882527360. Its totient is φ = 3989706840000.

The previous prime is 9990099900973. The next prime is 9990099901037. The reversal of 9990099901000 is 1099900999.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7285086 + ... + 8547085.

It is an arithmetic number, because the mean of its divisors is an integer number (365841914490).

Almost surely, 2^{9990099901000} is an apocalyptic number.

It is an amenable number.

9990099901000 is an abundant number, since it is smaller than the sum of its proper divisors (13423782626360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9990099901000 is a wasteful number, since it uses less digits than its factorization.

9990099901000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15832823 (or 15832809 counting only the distinct ones).

The product of its (nonzero) digits is 531441, while the sum is 55.

The spelling of 9990099901000 in words is "nine trillion, nine hundred ninety billion, ninety-nine million, nine hundred one thousand".