264561040207 has 2 divisors, whose sum is σ = 264561040208. Its totient is φ = 264561040206.

The previous prime is 264561040169. The next prime is 264561040253. The reversal of 264561040207 is 702040165462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264561040207 - 2²³ = 264552651599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264561043207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132280520103 + 132280520104.

It is an arithmetic number, because the mean of its divisors is an integer number (132280520104).

Almost surely, 2^264561040207 is an apocalyptic number.

264561040207 is a deficient number, since it is larger than the sum of its proper divisors (1).

264561040207 is an equidigital number, since it uses as much as digits as its factorization.

264561040207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 264561040207 in words is "two hundred sixty-four billion, five hundred sixty-one million, forty thousand, two hundred seven".