6664311025 has 12 divisors (see below), whose sum is σ = 8530319104. Its totient is φ = 5159466000.

The previous prime is 6664311013. The next prime is 6664311053. The reversal of 6664311025 is 5201134666.

It is not a de Polignac number, because 6664311025 - 2²⁵ = 6630756593 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4298781 + ... + 4300330.

Almost surely, 2^6664311025 is an apocalyptic number.

It is an amenable number.

6664311025 is a deficient number, since it is larger than the sum of its proper divisors (1866008079).

6664311025 is a wasteful number, since it uses less digits than its factorization.

6664311025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8599152 (or 8599147 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 6664311025 is about 81635.2315180156. The cubic root of 6664311025 is about 1881.8503572797.

The spelling of 6664311025 in words is "six billion, six hundred sixty-four million, three hundred eleven thousand, twenty-five".