866482483221 has 32 divisors (see below), whose sum is σ = 1300086528000. Its totient is φ = 570272839344.

The previous prime is 866482483219. The next prime is 866482483277. The reversal of 866482483221 is 122384284668.

866482483221 is a `hidden beast` number, since 8 + 6 + 64 + 82 + 483 + 2 + 21 = 666.

It is not a de Polignac number, because 866482483221 - 2¹ = 866482483219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866482483291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21828490 + ... + 21868148.

It is an arithmetic number, because the mean of its divisors is an integer number (40627704000).

Almost surely, 2^866482483221 is an apocalyptic number.

It is an amenable number.

866482483221 is a deficient number, since it is larger than the sum of its proper divisors (433604044779).

866482483221 is a wasteful number, since it uses less digits than its factorization.

866482483221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49990 (or 49984 counting only the distinct ones).

The product of its digits is 7077888, while the sum is 54.

The spelling of 866482483221 in words is "eight hundred sixty-six billion, four hundred eighty-two million, four hundred eighty-three thousand, two hundred twenty-one".