330816538121 has 2 divisors, whose sum is σ = 330816538122. Its totient is φ = 330816538120.

The previous prime is 330816538097. The next prime is 330816538153. The reversal of 330816538121 is 121835618033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320541674896 + 10274863225 = 566164^2 + 101365^2 .

It is a cyclic number.

It is not a de Polignac number, because 330816538121 - 2⁶ = 330816538057 is a prime.

It is not a weakly prime, because it can be changed into another prime (330816538321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165408269060 + 165408269061.

It is an arithmetic number, because the mean of its divisors is an integer number (165408269061).

Almost surely, 2^330816538121 is an apocalyptic number.

It is an amenable number.

330816538121 is a deficient number, since it is larger than the sum of its proper divisors (1).

330816538121 is an equidigital number, since it uses as much as digits as its factorization.

330816538121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 330816538121 in words is "three hundred thirty billion, eight hundred sixteen million, five hundred thirty-eight thousand, one hundred twenty-one".