66171106 has 8 divisors (see below), whose sum is σ = 105095340. Its totient is φ = 31139328.

The previous prime is 66171103. The next prime is 66171107. The reversal of 66171106 is 60117166.

It can be written as a sum of positive squares in 2 ways, for example, as 60606225 + 5564881 = 7785^2 + 2359^2 .

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

It is not an unprimeable number, because it can be changed into a prime (66171101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 973071 + ... + 973138.

Almost surely, 2^66171106 is an apocalyptic number.

66171106 is a deficient number, since it is larger than the sum of its proper divisors (38924234).

66171106 is a wasteful number, since it uses less digits than its factorization.

66171106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946228.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 66171106 is about 8134.5624344521. The cubic root of 66171106 is about 404.4729332321.

The spelling of 66171106 in words is "sixty-six million, one hundred seventy-one thousand, one hundred six".