66964301 has 2 divisors, whose sum is σ = 66964302. Its totient is φ = 66964300.

The previous prime is 66964297. The next prime is 66964349. The reversal of 66964301 is 10346966.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66015625 + 948676 = 8125^2 + 974^2 .

It is a cyclic number.

It is not a de Polignac number, because 66964301 - 2² = 66964297 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66960301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33482150 + 33482151.

It is an arithmetic number, because the mean of its divisors is an integer number (33482151).

Almost surely, 2^66964301 is an apocalyptic number.

It is an amenable number.

66964301 is a deficient number, since it is larger than the sum of its proper divisors (1).

66964301 is an equidigital number, since it uses as much as digits as its factorization.

66964301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 66964301 is about 8183.1718178222. The cubic root of 66964301 is about 406.0826613057.

The spelling of 66964301 in words is "sixty-six million, nine hundred sixty-four thousand, three hundred one".