240430256663 has 2 divisors, whose sum is σ = 240430256664. Its totient is φ = 240430256662.

The previous prime is 240430256623. The next prime is 240430256669. The reversal of 240430256663 is 366652034042.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240430256663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240430256663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240430256669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120215128331 + 120215128332.

It is an arithmetic number, because the mean of its divisors is an integer number (120215128332).

Almost surely, 2^240430256663 is an apocalyptic number.

240430256663 is a deficient number, since it is larger than the sum of its proper divisors (1).

240430256663 is an equidigital number, since it uses as much as digits as its factorization.

240430256663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 41.

The spelling of 240430256663 in words is "two hundred forty billion, four hundred thirty million, two hundred fifty-six thousand, six hundred sixty-three".