12256551113464 has 16 divisors (see below), whose sum is σ = 26264038100400. Its totient is φ = 5252807620032.

The previous prime is 12256551113449. The next prime is 12256551113497. The reversal of 12256551113464 is 46431115565221.

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, 109433492029 + ... + 109433492140.

It is an arithmetic number, because the mean of its divisors is an integer number (1641502381275).

Almost surely, 2^{12256551113464} is an apocalyptic number.

12256551113464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12256551113464 is an abundant number, since it is smaller than the sum of its proper divisors (14007486986936).

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

12256551113464 is a wasteful number, since it uses less digits than its factorization.

12256551113464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218866984182 (or 218866984178 counting only the distinct ones).

The product of its digits is 864000, while the sum is 46.

Adding to 12256551113464 its reverse (46431115565221), we get a palindrome (58687666678685).

The spelling of 12256551113464 in words is "twelve trillion, two hundred fifty-six billion, five hundred fifty-one million, one hundred thirteen thousand, four hundred sixty-four".