66065267 has 2 divisors, whose sum is σ = 66065268. Its totient is φ = 66065266.

The previous prime is 66065249. The next prime is 66065327. The reversal of 66065267 is 76256066.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66065267 - 2⁶ = 66065203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66065267.

It is not a weakly prime, because it can be changed into another prime (66062267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33032633 + 33032634.

It is an arithmetic number, because the mean of its divisors is an integer number (33032634).

Almost surely, 2^66065267 is an apocalyptic number.

66065267 is a deficient number, since it is larger than the sum of its proper divisors (1).

66065267 is an equidigital number, since it uses as much as digits as its factorization.

66065267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 66065267 is about 8128.0543182240. The cubic root of 66065267 is about 404.2571701010.

The spelling of 66065267 in words is "sixty-six million, sixty-five thousand, two hundred sixty-seven".