866675576668 has 48 divisors (see below), whose sum is σ = 1665180776448. Its totient is φ = 391421520000.

The previous prime is 866675576651. The next prime is 866675576681.

866675576668 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×866675576668² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 866675576594 and 866675576603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5502021 + ... + 5657347.

It is an arithmetic number, because the mean of its divisors is an integer number (34691266176).

Almost surely, 2^866675576668 is an apocalyptic number.

It is an amenable number.

866675576668 is a deficient number, since it is larger than the sum of its proper divisors (798505199780).

866675576668 is a wasteful number, since it uses less digits than its factorization.

866675576668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156154 (or 156152 counting only the distinct ones).

The product of its digits is 3657830400, while the sum is 76.

The spelling of 866675576668 in words is "eight hundred sixty-six billion, six hundred seventy-five million, five hundred seventy-six thousand, six hundred sixty-eight".