990999793336 has 64 divisors (see below), whose sum is σ = 2132041824000. Its totient is φ = 423021338880.

The previous prime is 990999793291. The next prime is 990999793337. The reversal of 990999793336 is 633397999099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990999793337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40570935 + ... + 40595353.

It is an arithmetic number, because the mean of its divisors is an integer number (33313153500).

Almost surely, 2^990999793336 is an apocalyptic number.

It is an amenable number.

990999793336 is an abundant number, since it is smaller than the sum of its proper divisors (1141042030664).

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

990999793336 is a wasteful number, since it uses less digits than its factorization.

990999793336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27292 (or 27288 counting only the distinct ones).

The product of its (nonzero) digits is 602654094, while the sum is 76.

The spelling of 990999793336 in words is "nine hundred ninety billion, nine hundred ninety-nine million, seven hundred ninety-three thousand, three hundred thirty-six".