13440667416 has 96 divisors (see below), whose sum is σ = 37379724480. Its totient is φ = 4023785920.

The previous prime is 13440667403. The next prime is 13440667417. The reversal of 13440667416 is 61476604431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13440667417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213151 + ... + 268913.

It is an arithmetic number, because the mean of its divisors is an integer number (389372130).

Almost surely, 2^13440667416 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 13440667416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18689862240).

13440667416 is an abundant number, since it is smaller than the sum of its proper divisors (23939057064).

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

13440667416 is a wasteful number, since it uses less digits than its factorization.

13440667416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55877 (or 55862 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 13440667416 in words is "thirteen billion, four hundred forty million, six hundred sixty-seven thousand, four hundred sixteen".