8666851536 has 360 divisors, whose sum is σ = 29965403520. Its totient is φ = 2286282240.

The previous prime is 8666851519. The next prime is 8666851597. The reversal of 8666851536 is 6351586668.

It is a super-2 number, since 2×8666851536² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 22279630 + ... + 22280018.

It is an arithmetic number, because the mean of its divisors is an integer number (83237232).

Almost surely, 2^8666851536 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 8666851536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14982701760).

8666851536 is an abundant number, since it is smaller than the sum of its proper divisors (21298551984).

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

8666851536 is a wasteful number, since it uses less digits than its factorization.

8666851536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 455 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 54.

The square root of 8666851536 is about 93095.9265274265. The cubic root of 8666851536 is about 2054.0946543923.

The spelling of 8666851536 in words is "eight billion, six hundred sixty-six million, eight hundred fifty-one thousand, five hundred thirty-six".