330643946441 has 2 divisors, whose sum is σ = 330643946442. Its totient is φ = 330643946440.

The previous prime is 330643946393. The next prime is 330643946443. The reversal of 330643946441 is 144649346033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193625520841 + 137018425600 = 440029^2 + 370160^2 .

It is an emirp because it is prime and its reverse (144649346033) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-330643946441 is a prime.

Together with 330643946443, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (330643946443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165321973220 + 165321973221.

It is an arithmetic number, because the mean of its divisors is an integer number (165321973221).

Almost surely, 2^330643946441 is an apocalyptic number.

It is an amenable number.

330643946441 is a deficient number, since it is larger than the sum of its proper divisors (1).

330643946441 is an equidigital number, since it uses as much as digits as its factorization.

330643946441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 47.

The spelling of 330643946441 in words is "three hundred thirty billion, six hundred forty-three million, nine hundred forty-six thousand, four hundred forty-one".