66310227 has 12 divisors (see below), whose sum is σ = 95901624. Its totient is φ = 44151360.

The previous prime is 66310213. The next prime is 66310249. The reversal of 66310227 is 72201366.

It is a happy number.

66310227 is a `hidden beast` number, since 6 + 631 + 0 + 2 + 27 = 666.

It is not a de Polignac number, because 66310227 - 2⁶ = 66310163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66310227.

It is not an unprimeable number, because it can be changed into a prime (66310297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3748 + ... + 12110.

It is an arithmetic number, because the mean of its divisors is an integer number (7991802).

Almost surely, 2^66310227 is an apocalyptic number.

66310227 is a deficient number, since it is larger than the sum of its proper divisors (29591397).

66310227 is a wasteful number, since it uses less digits than its factorization.

66310227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9250 (or 9247 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 66310227 is about 8143.1091727914. The cubic root of 66310227 is about 404.7561952832.

The spelling of 66310227 in words is "sixty-six million, three hundred ten thousand, two hundred twenty-seven".