15799072128 has 512 divisors, whose sum is σ = 55273881600. Its totient is φ = 3888414720.

The previous prime is 15799072087. The next prime is 15799072141. The reversal of 15799072128 is 82127099751.

15799072128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15799072128² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

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 63 ways as a sum of consecutive naturals, for example, 26914651 + ... + 26915237.

It is an arithmetic number, because the mean of its divisors is an integer number (107956800).

Almost surely, 2^15799072128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15799072128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27636940800).

15799072128 is an abundant number, since it is smaller than the sum of its proper divisors (39474809472).

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

15799072128 is a wasteful number, since it uses less digits than its factorization.

15799072128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 51.

The spelling of 15799072128 in words is "fifteen billion, seven hundred ninety-nine million, seventy-two thousand, one hundred twenty-eight".