6560666325 has 36 divisors (see below), whose sum is σ = 11783049408. Its totient is φ = 3489444000.

The previous prime is 6560666279. The next prime is 6560666347. The reversal of 6560666325 is 5236660656.

It is not a de Polignac number, because 6560666325 - 2¹⁰ = 6560665301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 42850 + ... + 122300.

It is an arithmetic number, because the mean of its divisors is an integer number (327306928).

Almost surely, 2^6560666325 is an apocalyptic number.

It is an amenable number.

6560666325 is a deficient number, since it is larger than the sum of its proper divisors (5222383083).

6560666325 is a wasteful number, since it uses less digits than its factorization.

6560666325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79834 (or 79826 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The square root of 6560666325 is about 80997.9402515891. The cubic root of 6560666325 is about 1872.0437039504.

The spelling of 6560666325 in words is "six billion, five hundred sixty million, six hundred sixty-six thousand, three hundred twenty-five".