866281167 has 6 divisors (see below), whose sum is σ = 1251295032. Its totient is φ = 577520772.

The previous prime is 866281147. The next prime is 866281181. The reversal of 866281167 is 761182668.

It is a happy number.

866281167 is a `hidden beast` number, since 8 + 6 + 628 + 1 + 16 + 7 = 666.

It is not a de Polignac number, because 866281167 - 2⁸ = 866280911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866281147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48126723 + ... + 48126740.

It is an arithmetic number, because the mean of its divisors is an integer number (208549172).

Almost surely, 2^866281167 is an apocalyptic number.

866281167 is a deficient number, since it is larger than the sum of its proper divisors (385013865).

866281167 is a wasteful number, since it uses less digits than its factorization.

866281167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96253469 (or 96253466 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 866281167 is about 29432.6547732276. The cubic root of 866281167 is about 953.2781183756.

The spelling of 866281167 in words is "eight hundred sixty-six million, two hundred eighty-one thousand, one hundred sixty-seven".