866506912 has 12 divisors (see below), whose sum is σ = 1705935546. Its totient is φ = 433253440.

The previous prime is 866506909. The next prime is 866506961. The reversal of 866506912 is 219605668.

It can be written as a sum of positive squares in only one way, i.e., 850538896 + 15968016 = 29164^2 + 3996^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13539139 + ... + 13539202.

Almost surely, 2^866506912 is an apocalyptic number.

It is an amenable number.

866506912 is a deficient number, since it is larger than the sum of its proper divisors (839428634).

866506912 is a wasteful number, since it uses less digits than its factorization.

866506912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27078351 (or 27078343 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 866506912 is about 29436.4894646084. The cubic root of 866506912 is about 953.3609163889.

The spelling of 866506912 in words is "eight hundred sixty-six million, five hundred six thousand, nine hundred twelve".