12315769656 has 64 divisors (see below), whose sum is σ = 31095187200. Its totient is φ = 4064567808.

The previous prime is 12315769633. The next prime is 12315769667. The reversal of 12315769656 is 65696751321.

It is a junction number, because it is equal to n+sod(n) for n = 12315769599 and 12315769608.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3412605 + ... + 3416211.

It is an arithmetic number, because the mean of its divisors is an integer number (485862300).

Almost surely, 2^12315769656 is an apocalyptic number.

It is an amenable number.

12315769656 is an abundant number, since it is smaller than the sum of its proper divisors (18779417544).

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

12315769656 is a wasteful number, since it uses less digits than its factorization.

12315769656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4988 (or 4984 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 51.

The spelling of 12315769656 in words is "twelve billion, three hundred fifteen million, seven hundred sixty-nine thousand, six hundred fifty-six".