12251413621564 has 48 divisors (see below), whose sum is σ = 23413956552000. Its totient is φ = 5575400441856.

The previous prime is 12251413621519. The next prime is 12251413621567. The reversal of 12251413621564 is 46512631415221.

It is a self number, because there is not a number n which added to its sum of digits gives 12251413621564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12251413621567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3157864 + ... + 5871535.

It is an arithmetic number, because the mean of its divisors is an integer number (487790761500).

Almost surely, 2^{12251413621564} is an apocalyptic number.

It is an amenable number.

12251413621564 is a deficient number, since it is larger than the sum of its proper divisors (11162542930436).

12251413621564 is a wasteful number, since it uses less digits than its factorization.

12251413621564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9029782 (or 9029780 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The spelling of 12251413621564 in words is "twelve trillion, two hundred fifty-one billion, four hundred thirteen million, six hundred twenty-one thousand, five hundred sixty-four".