15081197328 has 160 divisors (see below), whose sum is σ = 43968614400. Its totient is φ = 4948504704.

The previous prime is 15081197279. The next prime is 15081197387. The reversal of 15081197328 is 82379118051.

15081197328 is a `hidden beast` number, since 1 + 508 + 119 + 7 + 3 + 28 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22080475 + ... + 22081157.

It is an arithmetic number, because the mean of its divisors is an integer number (274803840).

Almost surely, 2^15081197328 is an apocalyptic number.

15081197328 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 15081197328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21984307200).

15081197328 is an abundant number, since it is smaller than the sum of its proper divisors (28887417072).

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

15081197328 is a wasteful number, since it uses less digits than its factorization.

15081197328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426 (or 1414 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The spelling of 15081197328 in words is "fifteen billion, eighty-one million, one hundred ninety-seven thousand, three hundred twenty-eight".