660944259337 has 2 divisors, whose sum is σ = 660944259338. Its totient is φ = 660944259336.

The previous prime is 660944259293. The next prime is 660944259383. The reversal of 660944259337 is 733952449066.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 651605742841 + 9338516496 = 807221^2 + 96636^2 .

It is a cyclic number.

It is not a de Polignac number, because 660944259337 - 2¹¹ = 660944257289 is a prime.

It is not a weakly prime, because it can be changed into another prime (660914259337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330472129668 + 330472129669.

It is an arithmetic number, because the mean of its divisors is an integer number (330472129669).

Almost surely, 2^660944259337 is an apocalyptic number.

It is an amenable number.

660944259337 is a deficient number, since it is larger than the sum of its proper divisors (1).

660944259337 is an equidigital number, since it uses as much as digits as its factorization.

660944259337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29393280, while the sum is 58.

The spelling of 660944259337 in words is "six hundred sixty billion, nine hundred forty-four million, two hundred fifty-nine thousand, three hundred thirty-seven".