866164264 has 32 divisors (see below), whose sum is σ = 1859267520. Its totient is φ = 370573056.

The previous prime is 866164259. The next prime is 866164283. The reversal of 866164264 is 462461668.

It is a self number, because there is not a number n which added to its sum of digits gives 866164264.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20167 + ... + 46249.

It is an arithmetic number, because the mean of its divisors is an integer number (58102110).

Almost surely, 2^866164264 is an apocalyptic number.

It is an amenable number.

866164264 is an abundant number, since it is smaller than the sum of its proper divisors (993103256).

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

866164264 is a wasteful number, since it uses less digits than its factorization.

866164264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26689 (or 26685 counting only the distinct ones).

The product of its digits is 331776, while the sum is 43.

The square root of 866164264 is about 29430.6687657620. The cubic root of 866164264 is about 953.2352354220.

The spelling of 866164264 in words is "eight hundred sixty-six million, one hundred sixty-four thousand, two hundred sixty-four".