15696131442 has 32 divisors (see below), whose sum is σ = 31723876800. Its totient is φ = 5176843200.

The previous prime is 15696131413. The next prime is 15696131449. The reversal of 15696131442 is 24413169651.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15696131394 and 15696131403.

It is not an unprimeable number, because it can be changed into a prime (15696131449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1018309 + ... + 1033607.

It is an arithmetic number, because the mean of its divisors is an integer number (991371150).

Almost surely, 2^15696131442 is an apocalyptic number.

15696131442 is an abundant number, since it is smaller than the sum of its proper divisors (16027745358).

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

15696131442 is a wasteful number, since it uses less digits than its factorization.

15696131442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17098.

The product of its digits is 155520, while the sum is 42.

The spelling of 15696131442 in words is "fifteen billion, six hundred ninety-six million, one hundred thirty-one thousand, four hundred forty-two".