330121666 has 16 divisors (see below), whose sum is σ = 584179200. Its totient is φ = 136916640.

The previous prime is 330121619. The next prime is 330121667. The reversal of 330121666 is 666121033.

It is not an unprimeable number, because it can be changed into a prime (330121667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379891 + ... + 380758.

It is an arithmetic number, because the mean of its divisors is an integer number (36511200).

Almost surely, 2^330121666 is an apocalyptic number.

330121666 is a deficient number, since it is larger than the sum of its proper divisors (254057534).

330121666 is a wasteful number, since it uses less digits than its factorization.

330121666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760689.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 330121666 is about 18169.2505624200. The cubic root of 330121666 is about 691.1272381777.

Adding to 330121666 its reverse (666121033), we get a palindrome (996242699).

The spelling of 330121666 in words is "three hundred thirty million, one hundred twenty-one thousand, six hundred sixty-six".