66014513 has 2 divisors, whose sum is σ = 66014514. Its totient is φ = 66014512.

The previous prime is 66014491. The next prime is 66014537. The reversal of 66014513 is 31541066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58874929 + 7139584 = 7673^2 + 2672^2 .

It is a cyclic number.

It is not a de Polignac number, because 66014513 - 2⁶ = 66014449 is a prime.

It is not a weakly prime, because it can be changed into another prime (66014563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33007256 + 33007257.

It is an arithmetic number, because the mean of its divisors is an integer number (33007257).

Almost surely, 2^66014513 is an apocalyptic number.

It is an amenable number.

66014513 is a deficient number, since it is larger than the sum of its proper divisors (1).

66014513 is an equidigital number, since it uses as much as digits as its factorization.

66014513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 66014513 is about 8124.9315689426. The cubic root of 66014513 is about 404.1536213642.

Adding to 66014513 its reverse (31541066), we get a palindrome (97555579).

The spelling of 66014513 in words is "sixty-six million, fourteen thousand, five hundred thirteen".