16231373999 has 16 divisors (see below), whose sum is σ = 17043824640. Its totient is φ = 15428128320.

The previous prime is 16231373989. The next prime is 16231374007. The reversal of 16231373999 is 99937313261.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16231373999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16231373999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16231373989) 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, 2546114 + ... + 2552480.

It is an arithmetic number, because the mean of its divisors is an integer number (1065239040).

Almost surely, 2^16231373999 is an apocalyptic number.

16231373999 is a deficient number, since it is larger than the sum of its proper divisors (812450641).

16231373999 is a wasteful number, since it uses less digits than its factorization.

16231373999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7070.

The product of its digits is 1653372, while the sum is 53.

The spelling of 16231373999 in words is "sixteen billion, two hundred thirty-one million, three hundred seventy-three thousand, nine hundred ninety-nine".