330066493 has 2 divisors, whose sum is σ = 330066494. Its totient is φ = 330066492.

The previous prime is 330066479. The next prime is 330066533. The reversal of 330066493 is 394660033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237560569 + 92505924 = 15413^2 + 9618^2 .

It is an emirp because it is prime and its reverse (394660033) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 330066493 - 2¹³ = 330058301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330066413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165033246 + 165033247.

It is an arithmetic number, because the mean of its divisors is an integer number (165033247).

Almost surely, 2^330066493 is an apocalyptic number.

It is an amenable number.

330066493 is a deficient number, since it is larger than the sum of its proper divisors (1).

330066493 is an equidigital number, since it uses as much as digits as its factorization.

330066493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 34.

The square root of 330066493 is about 18167.7321919936. The cubic root of 330066493 is about 691.0887334974.

The spelling of 330066493 in words is "three hundred thirty million, sixty-six thousand, four hundred ninety-three".