2256611566507 has 2 divisors, whose sum is σ = 2256611566508. Its totient is φ = 2256611566506.

The previous prime is 2256611566499. The next prime is 2256611566513. The reversal of 2256611566507 is 7056651166522.

2256611566507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2256611566507 - 2³ = 2256611566499 is a prime.

It is not a weakly prime, because it can be changed into another prime (2256611566607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128305783253 + 1128305783254.

It is an arithmetic number, because the mean of its divisors is an integer number (1128305783254).

Almost surely, 2^{2256611566507} is an apocalyptic number.

2256611566507 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256611566507 is an equidigital number, since it uses as much as digits as its factorization.

2256611566507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536000, while the sum is 52.

The spelling of 2256611566507 in words is "two trillion, two hundred fifty-six billion, six hundred eleven million, five hundred sixty-six thousand, five hundred seven".