866167066 has 16 divisors (see below), whose sum is σ = 1332291240. Its totient is φ = 422091520.

The previous prime is 866167061. The next prime is 866167069. The reversal of 866167066 is 660761668.

It can be written as a sum of positive squares in 4 ways, for example, as 706018041 + 160149025 = 26571^2 + 12655^2 .

It is not an unprimeable number, because it can be changed into a prime (866167061) by changing a digit.

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, 85140 + ... + 94768.

Almost surely, 2^866167066 is an apocalyptic number.

866167066 is a deficient number, since it is larger than the sum of its proper divisors (466124174).

866167066 is a wasteful number, since it uses less digits than its factorization.

866167066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10769.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 866167066 is about 29430.7163691270. The cubic root of 866167066 is about 953.2362633111.

The spelling of 866167066 in words is "eight hundred sixty-six million, one hundred sixty-seven thousand, sixty-six".