1323236656 has 40 divisors (see below), whose sum is σ = 2971309824. Its totient is φ = 559110720.

The previous prime is 1323236647. The next prime is 1323236659. The reversal of 1323236656 is 6566323231.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1323236659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75250 + ... + 91153.

Almost surely, 2^1323236656 is an apocalyptic number.

1323236656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1323236656 is an abundant number, since it is smaller than the sum of its proper divisors (1648073168).

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

1323236656 is a wasteful number, since it uses less digits than its factorization.

1323236656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166489 (or 166483 counting only the distinct ones).

The product of its digits is 116640, while the sum is 37.

The square root of 1323236656 is about 36376.3199897956. The cubic root of 1323236656 is about 1097.8571661453.

Adding to 1323236656 its reverse (6566323231), we get a palindrome (7889559887).

The spelling of 1323236656 in words is "one billion, three hundred twenty-three million, two hundred thirty-six thousand, six hundred fifty-six".