330216541 has 2 divisors, whose sum is σ = 330216542. Its totient is φ = 330216540.

The previous prime is 330216539. The next prime is 330216563. The reversal of 330216541 is 145612033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 271755225 + 58461316 = 16485^2 + 7646^2 .

It is a cyclic number.

It is not a de Polignac number, because 330216541 - 2¹ = 330216539 is a prime.

Together with 330216539, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330216521) 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, 165108270 + 165108271.

It is an arithmetic number, because the mean of its divisors is an integer number (165108271).

Almost surely, 2^330216541 is an apocalyptic number.

It is an amenable number.

330216541 is a deficient number, since it is larger than the sum of its proper divisors (1).

330216541 is an equidigital number, since it uses as much as digits as its factorization.

330216541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 330216541 is about 18171.8612420412. The cubic root of 330216541 is about 691.1934404529.

Adding to 330216541 its reverse (145612033), we get a palindrome (475828574).

The spelling of 330216541 in words is "three hundred thirty million, two hundred sixteen thousand, five hundred forty-one".