13564055320643 has 2 divisors, whose sum is σ = 13564055320644. Its totient is φ = 13564055320642.

The previous prime is 13564055320637. The next prime is 13564055320661. The reversal of 13564055320643 is 34602355046531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13564055320643 - 2⁶ = 13564055320579 is a prime.

It is not a weakly prime, because it can be changed into another prime (13564055320603) 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, 6782027660321 + 6782027660322.

It is an arithmetic number, because the mean of its divisors is an integer number (6782027660322).

Almost surely, 2^{13564055320643} is an apocalyptic number.

13564055320643 is a deficient number, since it is larger than the sum of its proper divisors (1).

13564055320643 is an equidigital number, since it uses as much as digits as its factorization.

13564055320643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888000, while the sum is 47.

The spelling of 13564055320643 in words is "thirteen trillion, five hundred sixty-four billion, fifty-five million, three hundred twenty thousand, six hundred forty-three".