240663612610591 has 2 divisors, whose sum is σ = 240663612610592. Its totient is φ = 240663612610590.

The previous prime is 240663612610523. The next prime is 240663612610627. The reversal of 240663612610591 is 195016216366042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240663612610591 - 2²¹ = 240663610513439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240663612610501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120331806305295 + 120331806305296.

It is an arithmetic number, because the mean of its divisors is an integer number (120331806305296).

Almost surely, 2^{240663612610591} is an apocalyptic number.

240663612610591 is a deficient number, since it is larger than the sum of its proper divisors (1).

240663612610591 is an equidigital number, since it uses as much as digits as its factorization.

240663612610591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 240663612610591 in words is "two hundred forty trillion, six hundred sixty-three billion, six hundred twelve million, six hundred ten thousand, five hundred ninety-one".