66711108 has 12 divisors (see below), whose sum is σ = 155659280. Its totient is φ = 22237032.

The previous prime is 66711091. The next prime is 66711131. The reversal of 66711108 is 80111766.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2779618 + ... + 2779641.

Almost surely, 2^66711108 is an apocalyptic number.

It is an amenable number.

66711108 is an abundant number, since it is smaller than the sum of its proper divisors (88948172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66711108 is a wasteful number, since it uses less digits than its factorization.

66711108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5559266 (or 5559264 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 66711108 is about 8167.6868206366. The cubic root of 66711108 is about 405.5702134135.

The spelling of 66711108 in words is "sixty-six million, seven hundred eleven thousand, one hundred eight".