330320161 has 2 divisors, whose sum is σ = 330320162. Its totient is φ = 330320160.

The previous prime is 330320129. The next prime is 330320167. The reversal of 330320161 is 161023033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234671761 + 95648400 = 15319^2 + 9780^2 .

It is an emirp because it is prime and its reverse (161023033) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 330320161 - 2⁵ = 330320129 is a prime.

It is a super-2 number, since 2×330320161² = 218222817526131842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (330320167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165160080 + 165160081.

It is an arithmetic number, because the mean of its divisors is an integer number (165160081).

Almost surely, 2^330320161 is an apocalyptic number.

It is an amenable number.

330320161 is a deficient number, since it is larger than the sum of its proper divisors (1).

330320161 is an equidigital number, since it uses as much as digits as its factorization.

330320161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 330320161 is about 18174.7121297698. The cubic root of 330320161 is about 691.2657303650.

Adding to 330320161 its reverse (161023033), we get a palindrome (491343194).

The spelling of 330320161 in words is "three hundred thirty million, three hundred twenty thousand, one hundred sixty-one".