13543196544 has 128 divisors (see below), whose sum is σ = 40015008000. Its totient is φ = 4509457920.

The previous prime is 13543196519. The next prime is 13543196587. The reversal of 13543196544 is 44569134531.

13543196544 is a `hidden beast` number, since 1 + 3 + 543 + 1 + 9 + 65 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 13543196544.

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, 4556979 + ... + 4559949.

It is an arithmetic number, because the mean of its divisors is an integer number (312617250).

Almost surely, 2^13543196544 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 13543196544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20007504000).

13543196544 is an abundant number, since it is smaller than the sum of its proper divisors (26471811456).

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

13543196544 is a wasteful number, since it uses less digits than its factorization.

13543196544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313 (or 4295 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The spelling of 13543196544 in words is "thirteen billion, five hundred forty-three million, one hundred ninety-six thousand, five hundred forty-four".