322641664 has 18 divisors (see below), whose sum is σ = 644023520. Its totient is φ = 161320704.

The previous prime is 322641659. The next prime is 322641689. The reversal of 322641664 is 466146223.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 629904 + ... + 630415.

Almost surely, 2^322641664 is an apocalyptic number.

It is an amenable number.

322641664 is a deficient number, since it is larger than the sum of its proper divisors (321381856).

322641664 is an equidigital number, since it uses as much as digits as its factorization.

322641664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260335 (or 1260321 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 322641664 is about 17962.2288149327. The cubic root of 322641664 is about 685.8673822184.

Adding to 322641664 its reverse (466146223), we get a palindrome (788787887).

The spelling of 322641664 in words is "three hundred twenty-two million, six hundred forty-one thousand, six hundred sixty-four".