866833338667 has 4 divisors (see below), whose sum is σ = 904521744720. Its totient is φ = 829144932616.

The previous prime is 866833338659. The next prime is 866833338677. The reversal of 866833338667 is 766833338668.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 866833338667 - 2³ = 866833338659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (866833338677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18844202992 + ... + 18844203037.

It is an arithmetic number, because the mean of its divisors is an integer number (226130436180).

Almost surely, 2^866833338667 is an apocalyptic number.

866833338667 is a deficient number, since it is larger than the sum of its proper divisors (37688406053).

866833338667 is a wasteful number, since it uses less digits than its factorization.

866833338667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37688406052.

The product of its digits is 376233984, while the sum is 67.

Subtracting from 866833338667 its reverse (766833338668), we obtain a palindrome (99999999999).

The spelling of 866833338667 in words is "eight hundred sixty-six billion, eight hundred thirty-three million, three hundred thirty-eight thousand, six hundred sixty-seven".