13320443604 has 48 divisors (see below), whose sum is σ = 33618139520. Its totient is φ = 4080689280.

The previous prime is 13320443573. The next prime is 13320443621. The reversal of 13320443604 is 40634402331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150712 + ... + 222159.

Almost surely, 2^13320443604 is an apocalyptic number.

It is an amenable number.

13320443604 is an abundant number, since it is smaller than the sum of its proper divisors (20297695916).

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

13320443604 is a wasteful number, since it uses less digits than its factorization.

13320443604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373120 (or 373118 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 13320443604 its reverse (40634402331), we get a palindrome (53954845935).

The spelling of 13320443604 in words is "thirteen billion, three hundred twenty million, four hundred forty-three thousand, six hundred four".