866788526230100 has 144 divisors (see below), whose sum is σ = 1899443922558336. Its totient is φ = 343314796032000.

The previous prime is 866788526230097. The next prime is 866788526230111. The reversal of 866788526230100 is 1032625887668.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42705243152 + ... + 42705263448.

It is an arithmetic number, because the mean of its divisors is an integer number (13190582795544).

Almost surely, 2^{866788526230100} 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 866788526230100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (949721961279168).

866788526230100 is an abundant number, since it is smaller than the sum of its proper divisors (1032655396328236).

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

866788526230100 is a wasteful number, since it uses less digits than its factorization.

866788526230100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27426 (or 27419 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 62.

The spelling of 866788526230100 in words is "eight hundred sixty-six trillion, seven hundred eighty-eight billion, five hundred twenty-six million, two hundred thirty thousand, one hundred".