9993021016 has 32 divisors (see below), whose sum is σ = 20462161680. Its totient is φ = 4537417600.

The previous prime is 9993021011. The next prime is 9993021029. The reversal of 9993021016 is 6101203999.

It is a self number, because there is not a number n which added to its sum of digits gives 9993021016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9993021011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22470 + ... + 143146.

Almost surely, 2^9993021016 is an apocalyptic number.

It is an amenable number.

9993021016 is an abundant number, since it is smaller than the sum of its proper divisors (10469140664).

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

9993021016 is a wasteful number, since it uses less digits than its factorization.

9993021016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121635 (or 121631 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 9993021016 is about 99965.0989895974. The cubic root of 9993021016 is about 2153.9333812186.

The spelling of 9993021016 in words is "nine billion, nine hundred ninety-three million, twenty-one thousand, sixteen".