99015972993 has 16 divisors (see below), whose sum is σ = 167646092160. Its totient is φ = 56580555888.

The previous prime is 99015972977. The next prime is 99015972997. The reversal of 99015972993 is 39927951099.

It is not a de Polignac number, because 99015972993 - 2⁴ = 99015972977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 99015972993.

It is not an unprimeable number, because it can be changed into a prime (99015972997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261946830 + ... + 261947207.

It is an arithmetic number, because the mean of its divisors is an integer number (10477880760).

Almost surely, 2^99015972993 is an apocalyptic number.

It is an amenable number.

99015972993 is a deficient number, since it is larger than the sum of its proper divisors (68630119167).

99015972993 is a wasteful number, since it uses less digits than its factorization.

99015972993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523894053 (or 523894047 counting only the distinct ones).

The product of its (nonzero) digits is 12400290, while the sum is 63.

The spelling of 99015972993 in words is "ninety-nine billion, fifteen million, nine hundred seventy-two thousand, nine hundred ninety-three".