13020224200644 has 12 divisors (see below), whose sum is σ = 30380523134864. Its totient is φ = 4340074733544.

The previous prime is 13020224200619. The next prime is 13020224200657. The reversal of 13020224200644 is 44600242202031.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542509341682 + ... + 542509341705.

Almost surely, 2^{13020224200644} is an apocalyptic number.

It is an amenable number.

13020224200644 is an abundant number, since it is smaller than the sum of its proper divisors (17360298934220).

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

13020224200644 is a wasteful number, since it uses less digits than its factorization.

13020224200644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085018683394 (or 1085018683392 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 13020224200644 its reverse (44600242202031), we get a palindrome (57620466402675).

The spelling of 13020224200644 in words is "thirteen trillion, twenty billion, two hundred twenty-four million, two hundred thousand, six hundred forty-four".