66301201 has 2 divisors, whose sum is σ = 66301202. Its totient is φ = 66301200.

The previous prime is 66301199. The next prime is 66301211. The reversal of 66301201 is 10210366.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61465600 + 4835601 = 7840^2 + 2199^2 .

It is a cyclic number.

It is not a de Polignac number, because 66301201 - 2¹ = 66301199 is a prime.

Together with 66301199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (66301211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33150600 + 33150601.

It is an arithmetic number, because the mean of its divisors is an integer number (33150601).

Almost surely, 2^66301201 is an apocalyptic number.

It is an amenable number.

66301201 is a deficient number, since it is larger than the sum of its proper divisors (1).

66301201 is an equidigital number, since it uses as much as digits as its factorization.

66301201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 66301201 is about 8142.5549430139. The cubic root of 66301201 is about 404.7378296135.

Adding to 66301201 its reverse (10210366), we get a palindrome (76511567).

The spelling of 66301201 in words is "sixty-six million, three hundred one thousand, two hundred one".