1323506656 has 12 divisors (see below), whose sum is σ = 2605653792. Its totient is φ = 661753312.

The previous prime is 1323506633. The next prime is 1323506663. The reversal of 1323506656 is 6566053231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20679760 + ... + 20679823.

It is an arithmetic number, because the mean of its divisors is an integer number (217137816).

Almost surely, 2^1323506656 is an apocalyptic number.

1323506656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1323506656 is a deficient number, since it is larger than the sum of its proper divisors (1282147136).

1323506656 is an equidigital number, since it uses as much as digits as its factorization.

1323506656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41359593 (or 41359585 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 37.

The square root of 1323506656 is about 36380.0310060341. The cubic root of 1323506656 is about 1097.9318318711.

Adding to 1323506656 its reverse (6566053231), we get a palindrome (7889559887).

The spelling of 1323506656 in words is "one billion, three hundred twenty-three million, five hundred six thousand, six hundred fifty-six".