264660241217 has 2 divisors, whose sum is σ = 264660241218. Its totient is φ = 264660241216.

The previous prime is 264660241187. The next prime is 264660241243. The reversal of 264660241217 is 712142066462.

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., 264652629136 + 7612081 = 514444^2 + 2759^2 .

It is a cyclic number.

It is not a de Polignac number, because 264660241217 - 2¹⁴ = 264660224833 is a prime.

It is not a weakly prime, because it can be changed into another prime (266660241217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132330120608 + 132330120609.

It is an arithmetic number, because the mean of its divisors is an integer number (132330120609).

Almost surely, 2^264660241217 is an apocalyptic number.

It is an amenable number.

264660241217 is a deficient number, since it is larger than the sum of its proper divisors (1).

264660241217 is an equidigital number, since it uses as much as digits as its factorization.

264660241217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 264660241217 in words is "two hundred sixty-four billion, six hundred sixty million, two hundred forty-one thousand, two hundred seventeen".