13276661216 has 96 divisors (see below), whose sum is σ = 33279906240. Its totient is φ = 5071159296.

The previous prime is 13276661161. The next prime is 13276661249. The reversal of 13276661216 is 61216667231.

13276661216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 5840 + ... + 163056.

It is an arithmetic number, because the mean of its divisors is an integer number (346665690).

Almost surely, 2^13276661216 is an apocalyptic number.

13276661216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13276661216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16639953120).

13276661216 is an abundant number, since it is smaller than the sum of its proper divisors (20003245024).

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

13276661216 is a wasteful number, since it uses less digits than its factorization.

13276661216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157276 (or 157268 counting only the distinct ones).

The product of its digits is 108864, while the sum is 41.

The spelling of 13276661216 in words is "thirteen billion, two hundred seventy-six million, six hundred sixty-one thousand, two hundred sixteen".