66163166 has 8 divisors (see below), whose sum is σ = 99959160. Its totient is φ = 32843448.

The previous prime is 66163151. The next prime is 66163177. The reversal of 66163166 is 66136166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118721 + ... + 119276.

It is an arithmetic number, because the mean of its divisors is an integer number (12494895).

Almost surely, 2^66163166 is an apocalyptic number.

66163166 is a deficient number, since it is larger than the sum of its proper divisors (33795994).

66163166 is a wasteful number, since it uses less digits than its factorization.

66163166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238138.

The product of its digits is 23328, while the sum is 35.

The square root of 66163166 is about 8134.0743788092. The cubic root of 66163166 is about 404.4567547531.

Subtracting from 66163166 its reverse (66136166), we obtain a cube (27000 = 30³).

The spelling of 66163166 in words is "sixty-six million, one hundred sixty-three thousand, one hundred sixty-six".