856110866 has 16 divisors (see below), whose sum is σ = 1383480000. Its totient is φ = 394976208.

The previous prime is 856110863. The next prime is 856110877. The reversal of 856110866 is 668011658.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (856110863) 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, 90635 + ... + 99633.

It is an arithmetic number, because the mean of its divisors is an integer number (86467500).

Almost surely, 2^856110866 is an apocalyptic number.

856110866 is a deficient number, since it is larger than the sum of its proper divisors (527369134).

856110866 is a wasteful number, since it uses less digits than its factorization.

856110866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12673.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 856110866 is about 29259.3722762468. The cubic root of 856110866 is about 949.5328695109.

The spelling of 856110866 in words is "eight hundred fifty-six million, one hundred ten thousand, eight hundred sixty-six".