16668382882428 has 192 divisors, whose sum is σ = 47004267340800. Its totient is φ = 5092123196160.

The previous prime is 16668382882421. The next prime is 16668382882469. The reversal of 16668382882428 is 82428828386661.

16668382882428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×16668382882428³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16668382882421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8553550 + ... + 10319882.

It is an arithmetic number, because the mean of its divisors is an integer number (244813892400).

Almost surely, 2^{16668382882428} is an apocalyptic number.

16668382882428 is a gapful number since it is divisible by the number (18) 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 16668382882428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23502133670400).

16668382882428 is an abundant number, since it is smaller than the sum of its proper divisors (30335884458372).

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

16668382882428 is a wasteful number, since it uses less digits than its factorization.

16668382882428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766529 (or 1766521 counting only the distinct ones).

The product of its digits is 679477248, while the sum is 72.

The spelling of 16668382882428 in words is "sixteen trillion, six hundred sixty-eight billion, three hundred eighty-two million, eight hundred eighty-two thousand, four hundred twenty-eight".