866466260212 has 96 divisors (see below), whose sum is σ = 1784477786112. Its totient is φ = 360455961216.

The previous prime is 866466260207. The next prime is 866466260249. The reversal of 866466260212 is 212062664668.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137030883 + ... + 137037205.

It is an arithmetic number, because the mean of its divisors is an integer number (18588310272).

Almost surely, 2^866466260212 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 866466260212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (892238893056).

866466260212 is an abundant number, since it is smaller than the sum of its proper divisors (918011525900).

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

866466260212 is a wasteful number, since it uses less digits than its factorization.

866466260212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7357 (or 7355 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 49.

The spelling of 866466260212 in words is "eight hundred sixty-six billion, four hundred sixty-six million, two hundred sixty thousand, two hundred twelve".