866247022312 has 16 divisors (see below), whose sum is σ = 1856243619360. Its totient is φ = 371248723824.

The previous prime is 866247022301. The next prime is 866247022313. The reversal of 866247022312 is 213220742668.

It is not an unprimeable number, because it can be changed into a prime (866247022313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7734348358 + ... + 7734348469.

It is an arithmetic number, because the mean of its divisors is an integer number (116015226210).

Almost surely, 2^866247022312 is an apocalyptic number.

It is an amenable number.

866247022312 is an abundant number, since it is smaller than the sum of its proper divisors (989996597048).

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

866247022312 is a wasteful number, since it uses less digits than its factorization.

866247022312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15468696840 (or 15468696836 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 866247022312 in words is "eight hundred sixty-six billion, two hundred forty-seven million, twenty-two thousand, three hundred twelve".