1313556565567 has 2 divisors, whose sum is σ = 1313556565568. Its totient is φ = 1313556565566.

The previous prime is 1313556565543. The next prime is 1313556565583. The reversal of 1313556565567 is 7655656553131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313556565567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313556560567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656778282783 + 656778282784.

It is an arithmetic number, because the mean of its divisors is an integer number (656778282784).

Almost surely, 2^{1313556565567} is an apocalyptic number.

1313556565567 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313556565567 is an equidigital number, since it uses as much as digits as its factorization.

1313556565567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42525000, while the sum is 58.

The spelling of 1313556565567 in words is "one trillion, three hundred thirteen billion, five hundred fifty-six million, five hundred sixty-five thousand, five hundred sixty-seven".