866575575668 has 48 divisors (see below), whose sum is σ = 1712317770240. Its totient is φ = 380169417600.

The previous prime is 866575575631. The next prime is 866575575683.

866575575668 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 866575575595 and 866575575604.

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, 342863 + ... + 1360406.

It is an arithmetic number, because the mean of its divisors is an integer number (35673286880).

Almost surely, 2^866575575668 is an apocalyptic number.

It is an amenable number.

866575575668 is a deficient number, since it is larger than the sum of its proper divisors (845742194572).

866575575668 is a wasteful number, since it uses less digits than its factorization.

866575575668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703688 (or 1703686 counting only the distinct ones).

The product of its digits is 2540160000, while the sum is 74.

The spelling of 866575575668 in words is "eight hundred sixty-six billion, five hundred seventy-five million, five hundred seventy-five thousand, six hundred sixty-eight".