330121669 has 2 divisors, whose sum is σ = 330121670. Its totient is φ = 330121668.

The previous prime is 330121667. The next prime is 330121679. The reversal of 330121669 is 966121033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197065444 + 133056225 = 14038^2 + 11535^2 .

It is a cyclic number.

It is not a de Polignac number, because 330121669 - 2¹ = 330121667 is a prime.

It is a super-2 number, since 2×330121669² = 217960632686691122, which contains 22 as substring.

Together with 330121667, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 330121669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330121667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165060834 + 165060835.

It is an arithmetic number, because the mean of its divisors is an integer number (165060835).

Almost surely, 2^330121669 is an apocalyptic number.

It is an amenable number.

330121669 is a deficient number, since it is larger than the sum of its proper divisors (1).

330121669 is an equidigital number, since it uses as much as digits as its factorization.

330121669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 330121669 is about 18169.2506449771. The cubic root of 330121669 is about 691.1272402713.

The spelling of 330121669 in words is "three hundred thirty million, one hundred twenty-one thousand, six hundred sixty-nine".