12256612263 has 12 divisors (see below), whose sum is σ = 20233137808. Its totient is φ = 7003778400.

The previous prime is 12256612223. The next prime is 12256612271. The reversal of 12256612263 is 36221665221.

12256612263 is a `hidden beast` number, since 1 + 22 + 566 + 12 + 2 + 63 = 666.

It is not a de Polignac number, because 12256612263 - 2¹⁶ = 12256546727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12256612223) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 97274638 + ... + 97274763.

Almost surely, 2^12256612263 is an apocalyptic number.

12256612263 is a deficient number, since it is larger than the sum of its proper divisors (7976525545).

12256612263 is a wasteful number, since it uses less digits than its factorization.

12256612263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194549414 (or 194549411 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The spelling of 12256612263 in words is "twelve billion, two hundred fifty-six million, six hundred twelve thousand, two hundred sixty-three".