866832600000 has 336 divisors, whose sum is σ = 2909606023296. Its totient is φ = 227694720000.

The previous prime is 866832599987. The next prime is 866832600001. The reversal of 866832600000 is 6238668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866832600001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40189219 + ... + 40210781.

It is an arithmetic number, because the mean of its divisors is an integer number (8659541736).

Almost surely, 2^866832600000 is an apocalyptic number.

866832600000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 866832600000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1454803011648).

866832600000 is an abundant number, since it is smaller than the sum of its proper divisors (2042773423296).

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

866832600000 is an equidigital number, since it uses as much as digits as its factorization.

866832600000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21670 (or 21640 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

Adding to 866832600000 its reverse (6238668), we get a palindrome (866838838668).

The spelling of 866832600000 in words is "eight hundred sixty-six billion, eight hundred thirty-two million, six hundred thousand".