66304568353 has 2 divisors, whose sum is σ = 66304568354. Its totient is φ = 66304568352.

The previous prime is 66304568329. The next prime is 66304568371. The reversal of 66304568353 is 35386540366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60355222929 + 5949345424 = 245673^2 + 77132^2 .

It is a cyclic number.

It is not a de Polignac number, because 66304568353 - 2⁹ = 66304567841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66304568297 and 66304568306.

It is not a weakly prime, because it can be changed into another prime (66304568303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33152284176 + 33152284177.

It is an arithmetic number, because the mean of its divisors is an integer number (33152284177).

Almost surely, 2^66304568353 is an apocalyptic number.

It is an amenable number.

66304568353 is a deficient number, since it is larger than the sum of its proper divisors (1).

66304568353 is an equidigital number, since it uses as much as digits as its factorization.

66304568353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4665600, while the sum is 49.

The spelling of 66304568353 in words is "sixty-six billion, three hundred four million, five hundred sixty-eight thousand, three hundred fifty-three".