6591070656 has 112 divisors (see below), whose sum is σ = 19419417600. Its totient is φ = 2192161536.

The previous prime is 6591070649. The next prime is 6591070687. The reversal of 6591070656 is 6560701956.

6591070656 is a `hidden beast` number, since 6 + 591 + 0 + 7 + 0 + 6 + 56 = 666.

It is a congruent number.

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, 823731 + ... + 831693.

Almost surely, 2^6591070656 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 6591070656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9709708800).

6591070656 is an abundant number, since it is smaller than the sum of its proper divisors (12828346944).

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

6591070656 is a wasteful number, since it uses less digits than its factorization.

6591070656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8463 (or 8447 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 6591070656 is about 81185.4091324297. The cubic root of 6591070656 is about 1874.9311411512.

The spelling of 6591070656 in words is "six billion, five hundred ninety-one million, seventy thousand, six hundred fifty-six".