2656393241856 has 144 divisors (see below), whose sum is σ = 7682044016640. Its totient is φ = 811800852480.

The previous prime is 2656393241851. The next prime is 2656393241857. The reversal of 2656393241856 is 6581423936562.

It is a self number, because there is not a number n which added to its sum of digits gives 2656393241856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656393241851) 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, 2483850 + ... + 3388553.

Almost surely, 2^{2656393241856} is an apocalyptic number.

It is an amenable number.

2656393241856 is an abundant number, since it is smaller than the sum of its proper divisors (5025650774784).

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

2656393241856 is a wasteful number, since it uses less digits than its factorization.

2656393241856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5872472 (or 5872458 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 60.

The spelling of 2656393241856 in words is "two trillion, six hundred fifty-six billion, three hundred ninety-three million, two hundred forty-one thousand, eight hundred fifty-six".