16287720544116 has 216 divisors, whose sum is σ = 49560306705000. Its totient is φ = 4491790668288.

The previous prime is 16287720544037. The next prime is 16287720544153. The reversal of 16287720544116 is 61144502778261.

It is a happy number.

16287720544116 is a `hidden beast` number, since 1 + 6 + 2 + 8 + 77 + 20 + 544 + 1 + 1 + 6 = 666.

16287720544116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8483821290000 + 7803899254116 = 2912700^2 + 2793546^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 173320710 + ... + 173414658.

It is an arithmetic number, because the mean of its divisors is an integer number (229445864375).

Almost surely, 2^{16287720544116} 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 16287720544116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24780153352500).

16287720544116 is an abundant number, since it is smaller than the sum of its proper divisors (33272586160884).

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

16287720544116 is a wasteful number, since it uses less digits than its factorization.

16287720544116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97391 (or 97379 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 16287720544116 in words is "sixteen trillion, two hundred eighty-seven billion, seven hundred twenty million, five hundred forty-four thousand, one hundred sixteen".