66310001 has 2 divisors, whose sum is σ = 66310002. Its totient is φ = 66310000.

The previous prime is 66309983. The next prime is 66310007. The reversal of 66310001 is 10001366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61465600 + 4844401 = 7840^2 + 2201^2 .

It is a cyclic number.

It is not a de Polignac number, because 66310001 - 2⁶ = 66309937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (66310007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33155000 + 33155001.

It is an arithmetic number, because the mean of its divisors is an integer number (33155001).

Almost surely, 2^66310001 is an apocalyptic number.

It is an amenable number.

66310001 is a deficient number, since it is larger than the sum of its proper divisors (1).

66310001 is an equidigital number, since it uses as much as digits as its factorization.

66310001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 66310001 is about 8143.0952960161. The cubic root of 66310001 is about 404.7557354497.

Adding to 66310001 its reverse (10001366), we get a palindrome (76311367).

The spelling of 66310001 in words is "sixty-six million, three hundred ten thousand, one".