66375367 has 2 divisors, whose sum is σ = 66375368. Its totient is φ = 66375366.

The previous prime is 66375347. The next prime is 66375389. The reversal of 66375367 is 76357366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66375367 - 2¹¹ = 66373319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66375307) 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 as a sum of consecutive naturals, namely, 33187683 + 33187684.

It is an arithmetic number, because the mean of its divisors is an integer number (33187684).

Almost surely, 2^66375367 is an apocalyptic number.

66375367 is a deficient number, since it is larger than the sum of its proper divisors (1).

66375367 is an equidigital number, since it uses as much as digits as its factorization.

66375367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 43.

The square root of 66375367 is about 8147.1078917613. The cubic root of 66375367 is about 404.8886896256. Note that the first 3 decimals are identical.

The spelling of 66375367 in words is "sixty-six million, three hundred seventy-five thousand, three hundred sixty-seven".