256696245333 has 72 divisors (see below), whose sum is σ = 423292396800. Its totient is φ = 149628124800.

The previous prime is 256696245317. The next prime is 256696245359. The reversal of 256696245333 is 333542696652.

256696245333 is a `hidden beast` number, since 2 + 5 + 6 + 6 + 9 + 624 + 5 + 3 + 3 + 3 = 666.

It is not a de Polignac number, because 256696245333 - 2⁴ = 256696245317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 256696245333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256696243333) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5479393 + ... + 5526041.

Almost surely, 2^256696245333 is an apocalyptic number.

It is an amenable number.

256696245333 is a deficient number, since it is larger than the sum of its proper divisors (166596151467).

256696245333 is a wasteful number, since it uses less digits than its factorization.

256696245333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46871 (or 46857 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 54.

The spelling of 256696245333 in words is "two hundred fifty-six billion, six hundred ninety-six million, two hundred forty-five thousand, three hundred thirty-three".