66267912 has 16 divisors (see below), whose sum is σ = 165669840. Its totient is φ = 22089296.

The previous prime is 66267911. The next prime is 66267913. The reversal of 66267912 is 21976266.

66267912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (66267911) and next prime (66267913).

It is not an unprimeable number, because it can be changed into a prime (66267911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1380558 + ... + 1380605.

It is an arithmetic number, because the mean of its divisors is an integer number (10354365).

Almost surely, 2^66267912 is an apocalyptic number.

It is an amenable number.

66267912 is an abundant number, since it is smaller than the sum of its proper divisors (99401928).

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

66267912 is a wasteful number, since it uses less digits than its factorization.

66267912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761172 (or 2761168 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 66267912 is about 8140.5105490995. The cubic root of 66267912 is about 404.6700803472.

The spelling of 66267912 in words is "sixty-six million, two hundred sixty-seven thousand, nine hundred twelve".