13220445424 has 10 divisors (see below), whose sum is σ = 25614613040. Its totient is φ = 6610222704.

The previous prime is 13220445419. The next prime is 13220445467. The reversal of 13220445424 is 42454402231.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 413138904 + ... + 413138935.

It is an arithmetic number, because the mean of its divisors is an integer number (2561461304).

Almost surely, 2^13220445424 is an apocalyptic number.

It is an amenable number.

13220445424 is a deficient number, since it is larger than the sum of its proper divisors (12394167616).

13220445424 is an equidigital number, since it uses as much as digits as its factorization.

13220445424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826277847 (or 826277841 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 13220445424 its reverse (42454402231), we get a palindrome (55674847655).

The spelling of 13220445424 in words is "thirteen billion, two hundred twenty million, four hundred forty-five thousand, four hundred twenty-four".