6568255660 has 48 divisors (see below), whose sum is σ = 14631823584. Its totient is φ = 2468164608.

The previous prime is 6568255657. The next prime is 6568255679. The reversal of 6568255660 is 665528656.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168322 + ... + 203638.

It is an arithmetic number, because the mean of its divisors is an integer number (304829658).

Almost surely, 2^6568255660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6568255660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7315911792).

6568255660 is an abundant number, since it is smaller than the sum of its proper divisors (8063567924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6568255660 is a wasteful number, since it uses less digits than its factorization.

6568255660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35890 (or 35888 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 49.

The square root of 6568255660 is about 81044.7756490201. The cubic root of 6568255660 is about 1872.7652816689.

The spelling of 6568255660 in words is "six billion, five hundred sixty-eight million, two hundred fifty-five thousand, six hundred sixty".