16880265256728 has 256 divisors, whose sum is σ = 46252369152000. Its totient is φ = 5115390465024.

The previous prime is 16880265256667. The next prime is 16880265256741. The reversal of 16880265256728 is 82765256208861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2715175476 + ... + 2715181692.

It is an arithmetic number, because the mean of its divisors is an integer number (180673317000).

Almost surely, 2^{16880265256728} 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 16880265256728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23126184576000).

16880265256728 is an abundant number, since it is smaller than the sum of its proper divisors (29372103895272).

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

16880265256728 is a wasteful number, since it uses less digits than its factorization.

16880265256728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8694 (or 8690 counting only the distinct ones).

The product of its (nonzero) digits is 154828800, while the sum is 66.

The spelling of 16880265256728 in words is "sixteen trillion, eight hundred eighty billion, two hundred sixty-five million, two hundred fifty-six thousand, seven hundred twenty-eight".