15920793216 has 256 divisors, whose sum is σ = 50263804800. Its totient is φ = 4943462400.

The previous prime is 15920793209. The next prime is 15920793247. The reversal of 15920793216 is 61239702951.

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, 5932611 + ... + 5935293.

Almost surely, 2^15920793216 is an apocalyptic number.

15920793216 is a gapful number since it is divisible by the number (16) 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 15920793216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25131902400).

15920793216 is an abundant number, since it is smaller than the sum of its proper divisors (34343011584).

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

15920793216 is a wasteful number, since it uses less digits than its factorization.

15920793216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824 (or 2806 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 15920793216 in words is "fifteen billion, nine hundred twenty million, seven hundred ninety-three thousand, two hundred sixteen".