13447235468216 has 64 divisors (see below), whose sum is σ = 27978548774400. Its totient is φ = 6007353433600.

The previous prime is 13447235468209. The next prime is 13447235468273. The reversal of 13447235468216 is 61286453274431.

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, 21713921 + ... + 22324623.

It is an arithmetic number, because the mean of its divisors is an integer number (437164824600).

Almost surely, 2^{13447235468216} 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 13447235468216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13989274387200).

13447235468216 is an abundant number, since it is smaller than the sum of its proper divisors (14531313306184).

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

13447235468216 is a wasteful number, since it uses less digits than its factorization.

13447235468216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615020 (or 615016 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 56.

The spelling of 13447235468216 in words is "thirteen trillion, four hundred forty-seven billion, two hundred thirty-five million, four hundred sixty-eight thousand, two hundred sixteen".