1323315664 has 40 divisors (see below), whose sum is σ = 2799097632. Its totient is φ = 601057920.

The previous prime is 1323315551. The next prime is 1323315671. The reversal of 1323315664 is 4665133231.

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 in 7 ways as a sum of consecutive naturals, for example, 386022 + ... + 389434.

Almost surely, 2^1323315664 is an apocalyptic number.

It is an amenable number.

1323315664 is an abundant number, since it is smaller than the sum of its proper divisors (1475781968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323315664 is a wasteful number, since it uses less digits than its factorization.

1323315664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5635 (or 5629 counting only the distinct ones).

The product of its digits is 38880, while the sum is 34.

The square root of 1323315664 is about 36377.4059547956. The cubic root of 1323315664 is about 1097.8790160470.

Adding to 1323315664 its reverse (4665133231), we get a palindrome (5988448895).

The spelling of 1323315664 in words is "one billion, three hundred twenty-three million, three hundred fifteen thousand, six hundred sixty-four".