660460313 has 2 divisors, whose sum is σ = 660460314. Its totient is φ = 660460312.

The previous prime is 660460291. The next prime is 660460327. The reversal of 660460313 is 313064066.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 656743129 + 3717184 = 25627^2 + 1928^2 .

It is a cyclic number.

It is not a de Polignac number, because 660460313 - 2¹⁴ = 660443929 is a prime.

It is not a weakly prime, because it can be changed into another prime (660460343) 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, 330230156 + 330230157.

It is an arithmetic number, because the mean of its divisors is an integer number (330230157).

Almost surely, 2^660460313 is an apocalyptic number.

It is an amenable number.

660460313 is a deficient number, since it is larger than the sum of its proper divisors (1).

660460313 is an equidigital number, since it uses as much as digits as its factorization.

660460313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 660460313 is about 25699.4224254165. The cubic root of 660460313 is about 870.8611339725.

The spelling of 660460313 in words is "six hundred sixty million, four hundred sixty thousand, three hundred thirteen".