12316515642 has 16 divisors (see below), whose sum is σ = 27370034880. Its totient is φ = 4105505196.

The previous prime is 12316515613. The next prime is 12316515647. The reversal of 12316515642 is 24651561321.

12316515642 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 6 + 5 + 1 + 5 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12316515597 and 12316515606.

It is not an unprimeable number, because it can be changed into a prime (12316515647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114041758 + ... + 114041865.

It is an arithmetic number, because the mean of its divisors is an integer number (1710627180).

Almost surely, 2^12316515642 is an apocalyptic number.

12316515642 is an abundant number, since it is smaller than the sum of its proper divisors (15053519238).

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

12316515642 is a wasteful number, since it uses less digits than its factorization.

12316515642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228083634 (or 228083628 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The spelling of 12316515642 in words is "twelve billion, three hundred sixteen million, five hundred fifteen thousand, six hundred forty-two".