15992565798 has 16 divisors (see below), whose sum is σ = 34892870976. Its totient is φ = 4846232040.

The previous prime is 15992565773. The next prime is 15992565811. The reversal of 15992565798 is 89756529951.

15992565798 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (66), and also a Moran number because the ratio is a prime number: 242311603 = 15992565798 / (1 + 5 + 9 + 9 + 2 + 5 + 6 + 5 + 7 + 9 + 8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121155736 + ... + 121155867.

It is an arithmetic number, because the mean of its divisors is an integer number (2180804436).

Almost surely, 2^15992565798 is an apocalyptic number.

15992565798 is an abundant number, since it is smaller than the sum of its proper divisors (18900305178).

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

15992565798 is a wasteful number, since it uses less digits than its factorization.

15992565798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242311619.

The product of its digits is 61236000, while the sum is 66.

The spelling of 15992565798 in words is "fifteen billion, nine hundred ninety-two million, five hundred sixty-five thousand, seven hundred ninety-eight".