66495166 has 8 divisors (see below), whose sum is σ = 99792504. Its totient is φ = 33231000.

The previous prime is 66495161. The next prime is 66495167. The reversal of 66495166 is 66159466.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66495161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2460 + ... + 11791.

It is an arithmetic number, because the mean of its divisors is an integer number (12474063).

Almost surely, 2^66495166 is an apocalyptic number.

66495166 is a deficient number, since it is larger than the sum of its proper divisors (33297338).

66495166 is a wasteful number, since it uses less digits than its factorization.

66495166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16586.

The product of its digits is 233280, while the sum is 43.

The square root of 66495166 is about 8154.4568182068. The cubic root of 66495166 is about 405.1321338913.

The spelling of 66495166 in words is "sixty-six million, four hundred ninety-five thousand, one hundred sixty-six".