866132858812264 has 32 divisors (see below), whose sum is σ = 1634353331570280. Its totient is φ = 430305338421504.

The previous prime is 866132858812261. The next prime is 866132858812307. The reversal of 866132858812264 is 462218858231668.

866132858812264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 370797002088100 + 495335856724164 = 19256090^2 + 22256142^2 .

It is a super-2 number, since 2×866132858812264² (a number of 31 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (70) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 866132858812193 and 866132858812202.

It is not an unprimeable number, because it can be changed into a prime (866132858812261) 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, 205552474 + ... + 209723830.

Almost surely, 2^{866132858812264} is an apocalyptic number.

It is an amenable number.

866132858812264 is a deficient number, since it is larger than the sum of its proper divisors (768220472758016).

866132858812264 is a wasteful number, since it uses less digits than its factorization.

866132858812264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4336837 (or 4336833 counting only the distinct ones).

The product of its digits is 424673280, while the sum is 70.

The spelling of 866132858812264 in words is "eight hundred sixty-six trillion, one hundred thirty-two billion, eight hundred fifty-eight million, eight hundred twelve thousand, two hundred sixty-four".