6600880656 has 30 divisors (see below), whose sum is σ = 18473298350. Its totient is φ = 2200293504.

The previous prime is 6600880651. The next prime is 6600880673. The reversal of 6600880656 is 6560880066.

It can be written as a sum of positive squares in only one way, i.e., 5612407056 + 988473600 = 74916^2 + 31440^2 .

It is not an unprimeable number, because it can be changed into a prime (6600880651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22919581 + ... + 22919868.

Almost surely, 2^6600880656 is an apocalyptic number.

It is an amenable number.

6600880656 is an abundant number, since it is smaller than the sum of its proper divisors (11872417694).

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

6600880656 is a wasteful number, since it uses less digits than its factorization.

6600880656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45839463 (or 45839454 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 6600880656 is about 81245.8039285722. The cubic root of 6600880656 is about 1875.8608816903.

The spelling of 6600880656 in words is "six billion, six hundred million, eight hundred eighty thousand, six hundred fifty-six".