12564456511 has 2 divisors, whose sum is σ = 12564456512. Its totient is φ = 12564456510.

The previous prime is 12564456493. The next prime is 12564456529. The reversal of 12564456511 is 11565446521.

It is a balanced prime because it is at equal distance from previous prime (12564456493) and next prime (12564456529).

It is a cyclic number.

It is not a de Polignac number, because 12564456511 - 2⁵ = 12564456479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12564456551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6282228255 + 6282228256.

It is an arithmetic number, because the mean of its divisors is an integer number (6282228256).

Almost surely, 2^12564456511 is an apocalyptic number.

12564456511 is a deficient number, since it is larger than the sum of its proper divisors (1).

12564456511 is an equidigital number, since it uses as much as digits as its factorization.

12564456511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144000, while the sum is 40.

The spelling of 12564456511 in words is "twelve billion, five hundred sixty-four million, four hundred fifty-six thousand, five hundred eleven".