330961661 has 16 divisors (see below), whose sum is σ = 357477120. Its totient is φ = 305268480.

The previous prime is 330961637. The next prime is 330961663. The reversal of 330961661 is 166169033.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-330961661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330961663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454880 + ... + 455606.

It is an arithmetic number, because the mean of its divisors is an integer number (22342320).

Almost surely, 2^330961661 is an apocalyptic number.

It is an amenable number.

330961661 is a deficient number, since it is larger than the sum of its proper divisors (26515459).

330961661 is a wasteful number, since it uses less digits than its factorization.

330961661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 330961661 is about 18192.3517171365. The cubic root of 330961661 is about 691.7129330707.

The spelling of 330961661 in words is "three hundred thirty million, nine hundred sixty-one thousand, six hundred sixty-one".