1323455663 has 8 divisors (see below), whose sum is σ = 1328998320. Its totient is φ = 1317922240.

The previous prime is 1323455647. The next prime is 1323455699. The reversal of 1323455663 is 3665543231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1323455663 - 2⁴ = 1323455647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323445663) by changing a digit.

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, 468068 + ... + 470886.

It is an arithmetic number, because the mean of its divisors is an integer number (166124790).

Almost surely, 2^1323455663 is an apocalyptic number.

1323455663 is a deficient number, since it is larger than the sum of its proper divisors (5542657).

1323455663 is a wasteful number, since it uses less digits than its factorization.

1323455663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4617.

The product of its digits is 194400, while the sum is 38.

The square root of 1323455663 is about 36379.3301615079. The cubic root of 1323455663 is about 1097.9177310588.

Adding to 1323455663 its reverse (3665543231), we get a palindrome (4988998894).

The spelling of 1323455663 in words is "one billion, three hundred twenty-three million, four hundred fifty-five thousand, six hundred sixty-three".