565545806543 has 2 divisors, whose sum is σ = 565545806544. Its totient is φ = 565545806542.

The previous prime is 565545806533. The next prime is 565545806603. The reversal of 565545806543 is 345608545565.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 565545806543 - 2¹² = 565545802447 is a prime.

It is a super-2 number, since 2×565545806543² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (565545806533) 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, 282772903271 + 282772903272.

It is an arithmetic number, because the mean of its divisors is an integer number (282772903272).

Almost surely, 2^565545806543 is an apocalyptic number.

565545806543 is a deficient number, since it is larger than the sum of its proper divisors (1).

565545806543 is an equidigital number, since it uses as much as digits as its factorization.

565545806543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200000, while the sum is 56.

The spelling of 565545806543 in words is "five hundred sixty-five billion, five hundred forty-five million, eight hundred six thousand, five hundred forty-three".