328662665 has 16 divisors (see below), whose sum is σ = 418437120. Its totient is φ = 247121280.

The previous prime is 328662661. The next prime is 328662667. The reversal of 328662665 is 566266823.

It is not a de Polignac number, because 328662665 - 2² = 328662661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (328662661) 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, 1556 + ... + 25685.

It is an arithmetic number, because the mean of its divisors is an integer number (26152320).

Almost surely, 2^328662665 is an apocalyptic number.

It is an amenable number.

328662665 is a deficient number, since it is larger than the sum of its proper divisors (89774455).

328662665 is a wasteful number, since it uses less digits than its factorization.

328662665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27392.

The product of its digits is 622080, while the sum is 44.

The square root of 328662665 is about 18129.0558220774. The cubic root of 328662665 is about 690.1075691707.

The spelling of 328662665 in words is "three hundred twenty-eight million, six hundred sixty-two thousand, six hundred sixty-five".