2566464887 has 16 divisors (see below), whose sum is σ = 2948871744. Its totient is φ = 2188032000.

The previous prime is 2566464811. The next prime is 2566464889. The reversal of 2566464887 is 7884646652.

It is not a de Polignac number, because 2566464887 - 2⁸ = 2566464631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566464889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1732187 + ... + 1733667.

It is an arithmetic number, because the mean of its divisors is an integer number (184304484).

Almost surely, 2^2566464887 is an apocalyptic number.

2566464887 is a deficient number, since it is larger than the sum of its proper divisors (382406857).

2566464887 is a wasteful number, since it uses less digits than its factorization.

2566464887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650.

The product of its digits is 15482880, while the sum is 56.

The square root of 2566464887 is about 50660.2890536562. The cubic root of 2566464887 is about 1369.1313311504.

The spelling of 2566464887 in words is "two billion, five hundred sixty-six million, four hundred sixty-four thousand, eight hundred eighty-seven".