6656255680 has 56 divisors (see below), whose sum is σ = 16073506080. Its totient is φ = 2624993280.

The previous prime is 6656255677. The next prime is 6656255719. The reversal of 6656255680 is 865526566.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123765 + ... + 169204.

Almost surely, 2^6656255680 is an apocalyptic number.

It is an amenable number.

6656255680 is an abundant number, since it is smaller than the sum of its proper divisors (9417250400).

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

6656255680 is a wasteful number, since it uses less digits than its factorization.

6656255680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293057 (or 293047 counting only the distinct ones).

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

The square root of 6656255680 is about 81585.8791703564. The cubic root of 6656255680 is about 1881.0918359761.

The spelling of 6656255680 in words is "six billion, six hundred fifty-six million, two hundred fifty-five thousand, six hundred eighty".