264546116540647 has 2 divisors, whose sum is σ = 264546116540648. Its totient is φ = 264546116540646.

The previous prime is 264546116540623. The next prime is 264546116540743. The reversal of 264546116540647 is 746045611645462.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264546116540647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264546116510647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132273058270323 + 132273058270324.

It is an arithmetic number, because the mean of its divisors is an integer number (132273058270324).

Almost surely, 2^{264546116540647} is an apocalyptic number.

264546116540647 is a deficient number, since it is larger than the sum of its proper divisors (1).

264546116540647 is an equidigital number, since it uses as much as digits as its factorization.

264546116540647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116121600, while the sum is 61.

The spelling of 264546116540647 in words is "two hundred sixty-four trillion, five hundred forty-six billion, one hundred sixteen million, five hundred forty thousand, six hundred forty-seven".