866011041 has 16 divisors (see below), whose sum is σ = 1466262400. Its totient is φ = 494863344.

The previous prime is 866011037. The next prime is 866011057. The reversal of 866011041 is 140110668.

866011041 is a `hidden beast` number, since 8 + 6 + 601 + 10 + 41 = 666.

It is not a de Polignac number, because 866011041 - 2² = 866011037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 866010996 and 866011014.

It is not an unprimeable number, because it can be changed into a prime (866011031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2290846 + ... + 2291223.

It is an arithmetic number, because the mean of its divisors is an integer number (91641400).

Almost surely, 2^866011041 is an apocalyptic number.

It is an amenable number.

866011041 is a deficient number, since it is larger than the sum of its proper divisors (600251359).

866011041 is a wasteful number, since it uses less digits than its factorization.

866011041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4582085 (or 4582079 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 866011041 is about 29428.0655327529. The cubic root of 866011041 is about 953.1790235379.

It can be divided in two parts, 8660 and 11041, that added together give a triangular number (19701 = T₁₉₈).

The spelling of 866011041 in words is "eight hundred sixty-six million, eleven thousand, forty-one".