665023322 has 16 divisors (see below), whose sum is σ = 1004640000. Its totient is φ = 330149520.

The previous prime is 665023319. The next prime is 665023349. The reversal of 665023322 is 223320566.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 331679 + ... + 333677.

It is an arithmetic number, because the mean of its divisors is an integer number (62790000).

Almost surely, 2^665023322 is an apocalyptic number.

665023322 is a deficient number, since it is larger than the sum of its proper divisors (339616678).

665023322 is a wasteful number, since it uses less digits than its factorization.

665023322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3101.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 665023322 is about 25788.0461066751. The cubic root of 665023322 is about 872.8620772346.

Adding to 665023322 its reverse (223320566), we get a palindrome (888343888).

The spelling of 665023322 in words is "six hundred sixty-five million, twenty-three thousand, three hundred twenty-two".