13213044155552 has 96 divisors (see below), whose sum is σ = 27851083545600. Its totient is φ = 6152357023488.

The previous prime is 13213044155503. The next prime is 13213044155567. The reversal of 13213044155552 is 25555144031231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10297343 + ... + 11509185.

It is an arithmetic number, because the mean of its divisors is an integer number (290115453600).

Almost surely, 2^{13213044155552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13213044155552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13925541772800).

13213044155552 is an abundant number, since it is smaller than the sum of its proper divisors (14638039390048).

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

13213044155552 is a wasteful number, since it uses less digits than its factorization.

13213044155552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212178 (or 1212170 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 41.

Adding to 13213044155552 its reverse (25555144031231), we get a palindrome (38768188186783).

The spelling of 13213044155552 in words is "thirteen trillion, two hundred thirteen billion, forty-four million, one hundred fifty-five thousand, five hundred fifty-two".