66360317 has 2 divisors, whose sum is σ = 66360318. Its totient is φ = 66360316.

The previous prime is 66360251. The next prime is 66360341. The reversal of 66360317 is 71306366.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38365636 + 27994681 = 6194^2 + 5291^2 .

It is a cyclic number.

It is not a de Polignac number, because 66360317 - 2¹² = 66356221 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 (66360517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33180158 + 33180159.

It is an arithmetic number, because the mean of its divisors is an integer number (33180159).

Almost surely, 2^66360317 is an apocalyptic number.

It is an amenable number.

66360317 is a deficient number, since it is larger than the sum of its proper divisors (1).

66360317 is an equidigital number, since it uses as much as digits as its factorization.

66360317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 66360317 is about 8146.1841987522. The cubic root of 66360317 is about 404.8580857251.

The spelling of 66360317 in words is "sixty-six million, three hundred sixty thousand, three hundred seventeen".