15728194022320 has 160 divisors (see below), whose sum is σ = 39772966867200. Its totient is φ = 5749791989760.

The previous prime is 15728194022297. The next prime is 15728194022369. The reversal of 15728194022320 is 2322049182751.

It is a happy number.

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, 45710281 + ... + 46053079.

It is an arithmetic number, because the mean of its divisors is an integer number (248581042920).

Almost surely, 2^{15728194022320} is an apocalyptic number.

15728194022320 is a gapful number since it is divisible by the number (10) 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 15728194022320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19886483433600).

15728194022320 is an abundant number, since it is smaller than the sum of its proper divisors (24044772844880).

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

15728194022320 is a wasteful number, since it uses less digits than its factorization.

15728194022320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343263 (or 343257 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 15728194022320 in words is "fifteen trillion, seven hundred twenty-eight billion, one hundred ninety-four million, twenty-two thousand, three hundred twenty".