866831443201230 has 64 divisors (see below), whose sum is σ = 2372215641864768. Its totient is φ = 200822488197120.

The previous prime is 866831443201201. The next prime is 866831443201253. The reversal of 866831443201230 is 32102344138668.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65371897081 + ... + 65371910340.

It is an arithmetic number, because the mean of its divisors is an integer number (37065869404137).

Almost surely, 2^{866831443201230} is an apocalyptic number.

866831443201230 is an abundant number, since it is smaller than the sum of its proper divisors (1505384198663538).

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

866831443201230 is a wasteful number, since it uses less digits than its factorization.

866831443201230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130743807461.

The product of its (nonzero) digits is 3981312, while the sum is 51.

Adding to 866831443201230 its reverse (32102344138668), we get a palindrome (898933787339898).

The spelling of 866831443201230 in words is "eight hundred sixty-six trillion, eight hundred thirty-one billion, four hundred forty-three million, two hundred one thousand, two hundred thirty".