12664054567 has 2 divisors, whose sum is σ = 12664054568. Its totient is φ = 12664054566.

The previous prime is 12664054549. The next prime is 12664054603. The reversal of 12664054567 is 76545046621.

It is a weak prime.

It is an emirp because it is prime and its reverse (76545046621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12664054567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12664054547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6332027283 + 6332027284.

It is an arithmetic number, because the mean of its divisors is an integer number (6332027284).

Almost surely, 2^12664054567 is an apocalyptic number.

12664054567 is a deficient number, since it is larger than the sum of its proper divisors (1).

12664054567 is an equidigital number, since it uses as much as digits as its factorization.

12664054567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 12664054567 in words is "twelve billion, six hundred sixty-four million, fifty-four thousand, five hundred sixty-seven".