66462013 has 2 divisors, whose sum is σ = 66462014. Its totient is φ = 66462012.

The previous prime is 66461963. The next prime is 66462017. The reversal of 66462013 is 31026466.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43007364 + 23454649 = 6558^2 + 4843^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66462013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66462017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33231006 + 33231007.

It is an arithmetic number, because the mean of its divisors is an integer number (33231007).

Almost surely, 2^66462013 is an apocalyptic number.

It is an amenable number.

66462013 is a deficient number, since it is larger than the sum of its proper divisors (1).

66462013 is an equidigital number, since it uses as much as digits as its factorization.

66462013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 66462013 is about 8152.4237500267. The cubic root of 66462013 is about 405.0647927634.

Adding to 66462013 its reverse (31026466), we get a palindrome (97488479).

The spelling of 66462013 in words is "sixty-six million, four hundred sixty-two thousand, thirteen".