2567666572 has 6 divisors (see below), whose sum is σ = 4493416508. Its totient is φ = 1283833284.

The previous prime is 2567666557. The next prime is 2567666573. The reversal of 2567666572 is 2756667652.

2567666572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2567666573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320958318 + ... + 320958325.

Almost surely, 2^2567666572 is an apocalyptic number.

It is an amenable number.

2567666572 is a deficient number, since it is larger than the sum of its proper divisors (1925749936).

2567666572 is a wasteful number, since it uses less digits than its factorization.

2567666572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641916647 (or 641916645 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 52.

The square root of 2567666572 is about 50672.1478921113. The cubic root of 2567666572 is about 1369.3449853321.

The spelling of 2567666572 in words is "two billion, five hundred sixty-seven million, six hundred sixty-six thousand, five hundred seventy-two".