6568880616 has 24 divisors (see below), whose sum is σ = 17790718530. Its totient is φ = 2189626848.

The previous prime is 6568880611. The next prime is 6568880623. The reversal of 6568880616 is 6160888656.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4589520516 + 1979360100 = 67746^2 + 44490^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (6568880611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45617155 + ... + 45617298.

Almost surely, 2^6568880616 is an apocalyptic number.

It is an amenable number.

6568880616 is an abundant number, since it is smaller than the sum of its proper divisors (11221837914).

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

6568880616 is a wasteful number, since it uses less digits than its factorization.

6568880616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91234465 (or 91234458 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The square root of 6568880616 is about 81048.6311790643. The cubic root of 6568880616 is about 1872.8246763718.

The spelling of 6568880616 in words is "six billion, five hundred sixty-eight million, eight hundred eighty thousand, six hundred sixteen".