6560386768 has 40 divisors (see below), whose sum is σ = 14493712968. Its totient is φ = 2849759232.

The previous prime is 6560386727. The next prime is 6560386769. The reversal of 6560386768 is 8676830656.

It can be written as a sum of positive squares in 4 ways, for example, as 663989824 + 5896396944 = 25768^2 + 76788^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6560386769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924121 + ... + 931192.

Almost surely, 2^6560386768 is an apocalyptic number.

6560386768 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6560386768 is an abundant number, since it is smaller than the sum of its proper divisors (7933326200).

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

6560386768 is a wasteful number, since it uses less digits than its factorization.

6560386768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855351 (or 1855345 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 55.

The square root of 6560386768 is about 80996.2145288284. The cubic root of 6560386768 is about 1872.0171136454.

The spelling of 6560386768 in words is "six billion, five hundred sixty million, three hundred eighty-six thousand, seven hundred sixty-eight".