66008227 has 2 divisors, whose sum is σ = 66008228. Its totient is φ = 66008226.

The previous prime is 66008191. The next prime is 66008233. The reversal of 66008227 is 72280066.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66008227 - 2¹¹ = 66006179 is a prime.

It is not a weakly prime, because it can be changed into another prime (66008287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33004113 + 33004114.

It is an arithmetic number, because the mean of its divisors is an integer number (33004114).

Almost surely, 2^66008227 is an apocalyptic number.

66008227 is a deficient number, since it is larger than the sum of its proper divisors (1).

66008227 is an equidigital number, since it uses as much as digits as its factorization.

66008227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 66008227 is about 8124.5447257062. The cubic root of 66008227 is about 404.1407929210.

The spelling of 66008227 in words is "sixty-six million, eight thousand, two hundred twenty-seven".