12870565663 has 2 divisors, whose sum is σ = 12870565664. Its totient is φ = 12870565662.

The previous prime is 12870565651. The next prime is 12870565753. The reversal of 12870565663 is 36656507821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12870565663 - 2²¹ = 12868468511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12870565613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6435282831 + 6435282832.

It is an arithmetic number, because the mean of its divisors is an integer number (6435282832).

Almost surely, 2^12870565663 is an apocalyptic number.

12870565663 is a deficient number, since it is larger than the sum of its proper divisors (1).

12870565663 is an equidigital number, since it uses as much as digits as its factorization.

12870565663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 12870565663 in words is "twelve billion, eight hundred seventy million, five hundred sixty-five thousand, six hundred sixty-three".