866543240441076 has 48 divisors (see below), whose sum is σ = 2205748269419520. Its totient is φ = 262588641786720.

The previous prime is 866543240441059. The next prime is 866543240441113. The reversal of 866543240441076 is 670144042345668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232402755 + ... + 236101941.

It is an arithmetic number, because the mean of its divisors is an integer number (45953088946240).

Almost surely, 2^{866543240441076} is an apocalyptic number.

It is an amenable number.

866543240441076 is an abundant number, since it is smaller than the sum of its proper divisors (1339205028978444).

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

866543240441076 is a wasteful number, since it uses less digits than its factorization.

866543240441076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5473844 (or 5473842 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 60.

The spelling of 866543240441076 in words is "eight hundred sixty-six trillion, five hundred forty-three billion, two hundred forty million, four hundred forty-one thousand, seventy-six".