66133166 has 16 divisors (see below), whose sum is σ = 111950640. Its totient is φ = 29023680.

The previous prime is 66133153. The next prime is 66133189.

66133166 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51191 + ... + 52466.

It is an arithmetic number, because the mean of its divisors is an integer number (6996915).

Almost surely, 2^66133166 is an apocalyptic number.

66133166 is a deficient number, since it is larger than the sum of its proper divisors (45817474).

66133166 is a wasteful number, since it uses less digits than its factorization.

66133166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103699.

The product of its digits is 11664, while the sum is 32.

The square root of 66133166 is about 8132.2300754467. The cubic root of 66133166 is about 404.3956153118.

It can be divided in two parts, 6613 and 3166, that added together give a palindrome (9779).

The spelling of 66133166 in words is "sixty-six million, one hundred thirty-three thousand, one hundred sixty-six".