1366356536659 has 2 divisors, whose sum is σ = 1366356536660. Its totient is φ = 1366356536658.

The previous prime is 1366356536627. The next prime is 1366356536669. The reversal of 1366356536659 is 9566356536631.

It is a strong prime.

It is an emirp because it is prime and its reverse (9566356536631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1366356536659 - 2⁵ = 1366356536627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1366356536659.

It is not a weakly prime, because it can be changed into another prime (1366356536609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683178268329 + 683178268330.

It is an arithmetic number, because the mean of its divisors is an integer number (683178268330).

Almost surely, 2^{1366356536659} is an apocalyptic number.

1366356536659 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366356536659 is an equidigital number, since it uses as much as digits as its factorization.

1366356536659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 236196000, while the sum is 64.

The spelling of 1366356536659 in words is "one trillion, three hundred sixty-six billion, three hundred fifty-six million, five hundred thirty-six thousand, six hundred fifty-nine".