16013440028784 has 160 divisors (see below), whose sum is σ = 46016752953600. Its totient is φ = 4757518356480.

The previous prime is 16013440028783. The next prime is 16013440028791. The reversal of 16013440028784 is 48782004431061.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16013440028783) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10930632 + ... + 12308760.

It is an arithmetic number, because the mean of its divisors is an integer number (287604705960).

Almost surely, 2^{16013440028784} 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 16013440028784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23008376476800).

16013440028784 is an abundant number, since it is smaller than the sum of its proper divisors (30003312924816).

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

16013440028784 is a wasteful number, since it uses less digits than its factorization.

16013440028784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378583 (or 1378577 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 48.

The spelling of 16013440028784 in words is "sixteen trillion, thirteen billion, four hundred forty million, twenty-eight thousand, seven hundred eighty-four".