2556464422267 has 32 divisors (see below), whose sum is σ = 3035860982784. Its totient is φ = 2107185062400.

The previous prime is 2556464422243. The next prime is 2556464422319. The reversal of 2556464422267 is 7622244646552.

It is not a de Polignac number, because 2556464422267 - 2¹¹ = 2556464420219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2556464422067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33630292 + ... + 33706222.

It is an arithmetic number, because the mean of its divisors is an integer number (94870655712).

Almost surely, 2^{2556464422267} is an apocalyptic number.

2556464422267 is a deficient number, since it is larger than the sum of its proper divisors (479396560517).

2556464422267 is a wasteful number, since it uses less digits than its factorization.

2556464422267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77659.

The product of its digits is 38707200, while the sum is 55.

The spelling of 2556464422267 in words is "two trillion, five hundred fifty-six billion, four hundred sixty-four million, four hundred twenty-two thousand, two hundred sixty-seven".