66824565359 has 2 divisors, whose sum is σ = 66824565360. Its totient is φ = 66824565358.

The previous prime is 66824565349. The next prime is 66824565389. The reversal of 66824565359 is 95356542866.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66824565359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66824565298 and 66824565307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66824565319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33412282679 + 33412282680.

It is an arithmetic number, because the mean of its divisors is an integer number (33412282680).

Almost surely, 2^66824565359 is an apocalyptic number.

66824565359 is a deficient number, since it is larger than the sum of its proper divisors (1).

66824565359 is an equidigital number, since it uses as much as digits as its factorization.

66824565359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656000, while the sum is 59.

The spelling of 66824565359 in words is "sixty-six billion, eight hundred twenty-four million, five hundred sixty-five thousand, three hundred fifty-nine".