15896831916 has 96 divisors (see below), whose sum is σ = 45289000960. Its totient is φ = 4238650944.

The previous prime is 15896831891. The next prime is 15896831939. The reversal of 15896831916 is 61913869851.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32601 + ... + 181263.

Almost surely, 2^15896831916 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 15896831916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22644500480).

15896831916 is an abundant number, since it is smaller than the sum of its proper divisors (29392169044).

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

15896831916 is a wasteful number, since it uses less digits than its factorization.

15896831916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148763 (or 148761 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 57.

The spelling of 15896831916 in words is "fifteen billion, eight hundred ninety-six million, eight hundred thirty-one thousand, nine hundred sixteen".