8550466657812 has 72 divisors (see below), whose sum is σ = 21931478539880. Its totient is φ = 2808325416960.

The previous prime is 8550466657801. The next prime is 8550466657819. The reversal of 8550466657812 is 2187566640558.

It can be written as a sum of positive squares in 4 ways, for example, as 3113156763396 + 5437309894416 = 1764414^2 + 2331804^2 .

It is a super-2 number, since 2×8550466657812² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8550466657812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8550466657819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1039362 + ... + 4263942.

Almost surely, 2^{8550466657812} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8550466657812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10965739269940).

8550466657812 is an abundant number, since it is smaller than the sum of its proper divisors (13381011882068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8550466657812 is a wasteful number, since it uses less digits than its factorization.

8550466657812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3225673 (or 3225668 counting only the distinct ones).

The product of its (nonzero) digits is 96768000, while the sum is 63.

The spelling of 8550466657812 in words is "eight trillion, five hundred fifty billion, four hundred sixty-six million, six hundred fifty-seven thousand, eight hundred twelve".