866763832016028 has 24 divisors (see below), whose sum is σ = 2022449471593488. Its totient is φ = 288921201592576.

The previous prime is 866763832015937. The next prime is 866763832016029. The reversal of 866763832016028 is 820610238367668.

866763832016028 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-2 number, since 2×866763832016028² (a number of 31 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 866763832016028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866763832016029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56716900 + ... + 70358612.

It is an arithmetic number, because the mean of its divisors is an integer number (84268727983062).

Almost surely, 2^{866763832016028} is an apocalyptic number.

It is an amenable number.

866763832016028 is an abundant number, since it is smaller than the sum of its proper divisors (1155685639577460).

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

866763832016028 is a wasteful number, since it uses less digits than its factorization.

866763832016028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18936533 (or 18936531 counting only the distinct ones).

The product of its (nonzero) digits is 167215104, while the sum is 66.

The spelling of 866763832016028 in words is "eight hundred sixty-six trillion, seven hundred sixty-three billion, eight hundred thirty-two million, sixteen thousand, twenty-eight".