866788524506168 has 64 divisors (see below), whose sum is σ = 1785745316880000. Its totient is φ = 391157318160000.

The previous prime is 866788524506159. The next prime is 866788524506269. The reversal of 866788524506168 is 861605425887668.

It is a junction number, because it is equal to n+sod(n) for n = 866788524506092 and 866788524506101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2809523918 + ... + 2809832418.

It is an arithmetic number, because the mean of its divisors is an integer number (27902270576250).

Almost surely, 2^{866788524506168} is an apocalyptic number.

866788524506168 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

866788524506168 is an abundant number, since it is smaller than the sum of its proper divisors (918956792373832).

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

866788524506168 is a wasteful number, since it uses less digits than its factorization.

866788524506168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538356 (or 538352 counting only the distinct ones).

The product of its (nonzero) digits is 7431782400, while the sum is 80.

The spelling of 866788524506168 in words is "eight hundred sixty-six trillion, seven hundred eighty-eight billion, five hundred twenty-four million, five hundred six thousand, one hundred sixty-eight".