15968499132 has 24 divisors (see below), whose sum is σ = 37273062736. Its totient is φ = 5320942848.

The previous prime is 15968499101. The next prime is 15968499167. The reversal of 15968499132 is 23199486951.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200863 + ... + 268854.

Almost surely, 2^15968499132 is an apocalyptic number.

15968499132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15968499132 is an abundant number, since it is smaller than the sum of its proper divisors (21304563604).

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

15968499132 is a wasteful number, since it uses less digits than its factorization.

15968499132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472557 (or 472555 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 57.

The spelling of 15968499132 in words is "fifteen billion, nine hundred sixty-eight million, four hundred ninety-nine thousand, one hundred thirty-two".