9991333845332 has 24 divisors (see below), whose sum is σ = 19982840107776. Its totient is φ = 4281963272928.

The previous prime is 9991333845289. The next prime is 9991333845407. The reversal of 9991333845332 is 2335483331999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1898318 + ... + 4856570.

It is an arithmetic number, because the mean of its divisors is an integer number (832618337824).

Almost surely, 2^{9991333845332} is an apocalyptic number.

It is an amenable number.

9991333845332 is an abundant number, since it is smaller than the sum of its proper divisors (9991506262444).

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

9991333845332 is a wasteful number, since it uses less digits than its factorization.

9991333845332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078887 (or 3078885 counting only the distinct ones).

The product of its digits is 56687040, while the sum is 62.

The spelling of 9991333845332 in words is "nine trillion, nine hundred ninety-one billion, three hundred thirty-three million, eight hundred forty-five thousand, three hundred thirty-two".