866533402246 has 16 divisors (see below), whose sum is σ = 1309197830400. Its totient is φ = 430139912328.

The previous prime is 866533402223. The next prime is 866533402261. The reversal of 866533402246 is 642204335668.

It is a self number, because there is not a number n which added to its sum of digits gives 866533402246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146586 + ... + 1745773.

It is an arithmetic number, because the mean of its divisors is an integer number (81824864400).

Almost surely, 2^866533402246 is an apocalyptic number.

866533402246 is a deficient number, since it is larger than the sum of its proper divisors (442664428154).

866533402246 is a wasteful number, since it uses less digits than its factorization.

866533402246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893443.

The product of its (nonzero) digits is 4976640, while the sum is 49.

The spelling of 866533402246 in words is "eight hundred sixty-six billion, five hundred thirty-three million, four hundred two thousand, two hundred forty-six".