866111060 has 48 divisors (see below), whose sum is σ = 1882576080. Its totient is φ = 334479360.

The previous prime is 866111003. The next prime is 866111093. The reversal of 866111060 is 60111668.

It can be written as a sum of positive squares in 8 ways, for example, as 344993476 + 521117584 = 18574^2 + 22828^2 .

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, 74096 + ... + 84984.

It is an arithmetic number, because the mean of its divisors is an integer number (39220335).

Almost surely, 2^866111060 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 866111060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (941288040).

866111060 is an abundant number, since it is smaller than the sum of its proper divisors (1016465020).

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

866111060 is a wasteful number, since it uses less digits than its factorization.

866111060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11036 (or 11034 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 866111060 is about 29429.7648648439. The cubic root of 866111060 is about 953.2157175823.

The spelling of 866111060 in words is "eight hundred sixty-six million, one hundred eleven thousand, sixty".