15399160128 has 560 divisors, whose sum is σ = 53506664640. Its totient is φ = 4329676800.

The previous prime is 15399160121. The next prime is 15399160141. The reversal of 15399160128 is 82106199351.

15399160128 is a `hidden beast` number, since 1 + 5 + 39 + 9 + 1 + 601 + 2 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15399160121) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 66090700 + ... + 66090932.

Almost surely, 2^15399160128 is an apocalyptic number.

15399160128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15399160128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26753332320).

15399160128 is an abundant number, since it is smaller than the sum of its proper divisors (38107504512).

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

15399160128 is a wasteful number, since it uses less digits than its factorization.

15399160128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The spelling of 15399160128 in words is "fifteen billion, three hundred ninety-nine million, one hundred sixty thousand, one hundred twenty-eight".