66311116 has 12 divisors (see below), whose sum is σ = 121090032. Its totient is φ = 31713968.

The previous prime is 66311111. The next prime is 66311123. The reversal of 66311116 is 61111366.

It is not an unprimeable number, because it can be changed into a prime (66311111) 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, 360295 + ... + 360478.

It is an arithmetic number, because the mean of its divisors is an integer number (10090836).

Almost surely, 2^66311116 is an apocalyptic number.

It is an amenable number.

66311116 is a deficient number, since it is larger than the sum of its proper divisors (54778916).

66311116 is a wasteful number, since it uses less digits than its factorization.

66311116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720800 (or 720798 counting only the distinct ones).

The product of its digits is 648, while the sum is 25.

The square root of 66311116 is about 8143.1637586383. The cubic root of 66311116 is about 404.7580040874.

The spelling of 66311116 in words is "sixty-six million, three hundred eleven thousand, one hundred sixteen".