6560516659 has 2 divisors, whose sum is σ = 6560516660. Its totient is φ = 6560516658.

The previous prime is 6560516587. The next prime is 6560516663. The reversal of 6560516659 is 9566150656.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6560516659 - 2⁹ = 6560516147 is a prime.

It is not a weakly prime, because it can be changed into another prime (6560516689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3280258329 + 3280258330.

It is an arithmetic number, because the mean of its divisors is an integer number (3280258330).

Almost surely, 2^6560516659 is an apocalyptic number.

6560516659 is a deficient number, since it is larger than the sum of its proper divisors (1).

6560516659 is an equidigital number, since it uses as much as digits as its factorization.

6560516659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458000, while the sum is 49.

The square root of 6560516659 is about 80997.0163586289. The cubic root of 6560516659 is about 1872.0294684337.

The spelling of 6560516659 in words is "six billion, five hundred sixty million, five hundred sixteen thousand, six hundred fifty-nine".