13320443056 has 10 divisors (see below), whose sum is σ = 25808358452. Its totient is φ = 6660221520.

The previous prime is 13320443053. The next prime is 13320443089. The reversal of 13320443056 is 65034402331.

It is not an unprimeable number, because it can be changed into a prime (13320443053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 416263830 + ... + 416263861.

Almost surely, 2^13320443056 is an apocalyptic number.

13320443056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13320443056 is a deficient number, since it is larger than the sum of its proper divisors (12487915396).

13320443056 is an equidigital number, since it uses as much as digits as its factorization.

13320443056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832527699 (or 832527693 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 13320443056 its reverse (65034402331), we get a palindrome (78354845387).

The spelling of 13320443056 in words is "thirteen billion, three hundred twenty million, four hundred forty-three thousand, fifty-six".