2564465266 has 64 divisors (see below), whose sum is σ = 4606626816. Its totient is φ = 1057075200.

The previous prime is 2564465251. The next prime is 2564465269. The reversal of 2564465266 is 6625644652.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2564465269) 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, 4324266 + ... + 4324858.

It is an arithmetic number, because the mean of its divisors is an integer number (71978544).

Almost surely, 2^2564465266 is an apocalyptic number.

2564465266 is a deficient number, since it is larger than the sum of its proper divisors (2042161550).

2564465266 is a wasteful number, since it uses less digits than its factorization.

2564465266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027.

The product of its digits is 2073600, while the sum is 46.

The square root of 2564465266 is about 50640.5496218199. The cubic root of 2564465266 is about 1368.7756596706.

The spelling of 2564465266 in words is "two billion, five hundred sixty-four million, four hundred sixty-five thousand, two hundred sixty-six".