1313443133666 has 16 divisors (see below), whose sum is σ = 1981787131584. Its totient is φ = 652848320784.

The previous prime is 1313443133663. The next prime is 1313443133671. The reversal of 1313443133666 is 6663313443131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1313443133663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2764931 + ... + 3204953.

It is an arithmetic number, because the mean of its divisors is an integer number (123861695724).

Almost surely, 2^{1313443133666} is an apocalyptic number.

1313443133666 is a deficient number, since it is larger than the sum of its proper divisors (668343997918).

1313443133666 is a wasteful number, since it uses less digits than its factorization.

1313443133666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448825.

The product of its digits is 839808, while the sum is 44.

Adding to 1313443133666 its reverse (6663313443131), we get a palindrome (7976756576797).

The spelling of 1313443133666 in words is "one trillion, three hundred thirteen billion, four hundred forty-three million, one hundred thirty-three thousand, six hundred sixty-six".