12256853816 has 16 divisors (see below), whose sum is σ = 23516057400. Its totient is φ = 5985905184.

The previous prime is 12256853759. The next prime is 12256853831. The reversal of 12256853816 is 61835865221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17814851 + ... + 17815538.

Almost surely, 2^12256853816 is an apocalyptic number.

It is an amenable number.

12256853816 is a deficient number, since it is larger than the sum of its proper divisors (11259203584).

12256853816 is a wasteful number, since it uses less digits than its factorization.

12256853816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35630438 (or 35630434 counting only the distinct ones).

The product of its digits is 691200, while the sum is 47.

The spelling of 12256853816 in words is "twelve billion, two hundred fifty-six million, eight hundred fifty-three thousand, eight hundred sixteen".