66313001 has 2 divisors, whose sum is σ = 66313002. Its totient is φ = 66313000.

The previous prime is 66312997. The next prime is 66313057. The reversal of 66313001 is 10031366.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35521600 + 30791401 = 5960^2 + 5549^2 .

It is a cyclic number.

It is not a de Polignac number, because 66313001 - 2² = 66312997 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (66313081) 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, 33156500 + 33156501.

It is an arithmetic number, because the mean of its divisors is an integer number (33156501).

Almost surely, 2^66313001 is an apocalyptic number.

It is an amenable number.

66313001 is a deficient number, since it is larger than the sum of its proper divisors (1).

66313001 is an equidigital number, since it uses as much as digits as its factorization.

66313001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 66313001 is about 8143.2794990716. The cubic root of 66313001 is about 404.7618393499.

Adding to 66313001 its reverse (10031366), we get a palindrome (76344367).

The spelling of 66313001 in words is "sixty-six million, three hundred thirteen thousand, one".