6556165056659 has 2 divisors, whose sum is σ = 6556165056660. Its totient is φ = 6556165056658.

The previous prime is 6556165056607. The next prime is 6556165056671. The reversal of 6556165056659 is 9566505616556.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6556165056659 is a prime.

It is a super-3 number, since 3×6556165056659³ (a number of 39 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6556165056595 and 6556165056604.

It is not a weakly prime, because it can be changed into another prime (6556165056059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3278082528329 + 3278082528330.

It is an arithmetic number, because the mean of its divisors is an integer number (3278082528330).

Almost surely, 2^{6556165056659} is an apocalyptic number.

6556165056659 is a deficient number, since it is larger than the sum of its proper divisors (1).

6556165056659 is an equidigital number, since it uses as much as digits as its factorization.

6556165056659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 218700000, while the sum is 65.

The spelling of 6556165056659 in words is "six trillion, five hundred fifty-six billion, one hundred sixty-five million, fifty-six thousand, six hundred fifty-nine".