66366367 has 2 divisors, whose sum is σ = 66366368. Its totient is φ = 66366366.

The previous prime is 66366359. The next prime is 66366389. The reversal of 66366367 is 76366366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66366367 - 2³ = 66366359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66366347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33183183 + 33183184.

It is an arithmetic number, because the mean of its divisors is an integer number (33183184).

Almost surely, 2^66366367 is an apocalyptic number.

66366367 is a deficient number, since it is larger than the sum of its proper divisors (1).

66366367 is an equidigital number, since it uses as much as digits as its factorization.

66366367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 43.

The square root of 66366367 is about 8146.5555297929. Note that the first 4 decimals coincide. The cubic root of 66366367 is about 404.8703888459.

Subtracting 66366367 from its reverse (76366366), we obtain a palindrome (9999999).

The spelling of 66366367 in words is "sixty-six million, three hundred sixty-six thousand, three hundred sixty-seven".