6581088656 has 20 divisors (see below), whose sum is σ = 12752158512. Its totient is φ = 3290209056.

The previous prime is 6581088649. The next prime is 6581088659. The reversal of 6581088656 is 6568801856.

It is a junction number, because it is equal to n+sod(n) for n = 6581088598 and 6581088607.

It is not an unprimeable number, because it can be changed into a prime (6581088659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237815 + ... + 264041.

Almost surely, 2^6581088656 is an apocalyptic number.

It is an amenable number.

6581088656 is a deficient number, since it is larger than the sum of its proper divisors (6171069856).

6581088656 is a wasteful number, since it uses less digits than its factorization.

6581088656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41918 (or 41912 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 53.

The square root of 6581088656 is about 81123.9092746399. The cubic root of 6581088656 is about 1873.9841519260.

The spelling of 6581088656 in words is "six billion, five hundred eighty-one million, eighty-eight thousand, six hundred fifty-six".