66112166 has 16 divisors (see below), whose sum is σ = 105180768. Its totient is φ = 31099200.

The previous prime is 66112159. The next prime is 66112169. The reversal of 66112166 is 66121166.

It is a super-3 number, since 3×66112166³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66112169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8975 + ... + 14586.

It is an arithmetic number, because the mean of its divisors is an integer number (6573798).

Almost surely, 2^66112166 is an apocalyptic number.

66112166 is a deficient number, since it is larger than the sum of its proper divisors (39068602).

66112166 is a wasteful number, since it uses less digits than its factorization.

66112166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23647.

The product of its digits is 2592, while the sum is 29.

The square root of 66112166 is about 8130.9388141838. The cubic root of 66112166 is about 404.3528067006.

The spelling of 66112166 in words is "sixty-six million, one hundred twelve thousand, one hundred sixty-six".