565441021099 has 2 divisors, whose sum is σ = 565441021100. Its totient is φ = 565441021098.

The previous prime is 565441021091. The next prime is 565441021121. The reversal of 565441021099 is 990120144565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 565441021099 - 2³ = 565441021091 is a prime.

It is not a weakly prime, because it can be changed into another prime (565441021091) 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, 282720510549 + 282720510550.

It is an arithmetic number, because the mean of its divisors is an integer number (282720510550).

Almost surely, 2^565441021099 is an apocalyptic number.

565441021099 is a deficient number, since it is larger than the sum of its proper divisors (1).

565441021099 is an equidigital number, since it uses as much as digits as its factorization.

565441021099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 46.

The spelling of 565441021099 in words is "five hundred sixty-five billion, four hundred forty-one million, twenty-one thousand, ninety-nine".