256612226146713 has 6 divisors (see below), whose sum is σ = 370662104434154. Its totient is φ = 171074817431136.

The previous prime is 256612226146711. The next prime is 256612226146733. The reversal of 256612226146713 is 317641622216652.

It is a happy number.

256612226146713 is a `hidden beast` number, since 2 + 5 + 6 + 6 + 1 + 2 + 2 + 2 + 614 + 6 + 7 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 247702019056704 + 8910207090009 = 15738552^2 + 2984997^2 .

It is not a de Polignac number, because 256612226146713 - 2¹ = 256612226146711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 256612226146713.

It is not an unprimeable number, because it can be changed into a prime (256612226146711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14256234785920 + ... + 14256234785937.

Almost surely, 2^{256612226146713} is an apocalyptic number.

It is an amenable number.

256612226146713 is a deficient number, since it is larger than the sum of its proper divisors (114049878287441).

256612226146713 is a wasteful number, since it uses less digits than its factorization.

256612226146713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28512469571863 (or 28512469571860 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 256612226146713 in words is "two hundred fifty-six trillion, six hundred twelve billion, two hundred twenty-six million, one hundred forty-six thousand, seven hundred thirteen".