12225645464555 has 32 divisors (see below), whose sum is σ = 15358668811200. Its totient is φ = 9333922590720.

The previous prime is 12225645464521. The next prime is 12225645464579. The reversal of 12225645464555 is 55546454652221.

It is not a de Polignac number, because 12225645464555 - 2⁶ = 12225645464491 is a prime.

It is a super-2 number, since 2×12225645464555² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12225645464555.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 520271 + ... + 4972119.

It is an arithmetic number, because the mean of its divisors is an integer number (479958400350).

Almost surely, 2^{12225645464555} is an apocalyptic number.

12225645464555 is a deficient number, since it is larger than the sum of its proper divisors (3133023346645).

12225645464555 is a wasteful number, since it uses less digits than its factorization.

12225645464555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4452191.

The product of its digits is 57600000, while the sum is 56.

The spelling of 12225645464555 in words is "twelve trillion, two hundred twenty-five billion, six hundred forty-five million, four hundred sixty-four thousand, five hundred fifty-five".