66063901 has 2 divisors, whose sum is σ = 66063902. Its totient is φ = 66063900.

The previous prime is 66063871. The next prime is 66063913. The reversal of 66063901 is 10936066.

66063901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61544025 + 4519876 = 7845^2 + 2126^2 .

It is a cyclic number.

It is not a de Polignac number, because 66063901 - 2⁷ = 66063773 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66063941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33031950 + 33031951.

It is an arithmetic number, because the mean of its divisors is an integer number (33031951).

Almost surely, 2^66063901 is an apocalyptic number.

It is an amenable number.

66063901 is a deficient number, since it is larger than the sum of its proper divisors (1).

66063901 is an equidigital number, since it uses as much as digits as its factorization.

66063901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 66063901 is about 8127.9702878394. The cubic root of 66063901 is about 404.2543838709.

Adding to 66063901 its reverse (10936066), we get a palindrome (76999967).

The spelling of 66063901 in words is "sixty-six million, sixty-three thousand, nine hundred one".