18002555718341 has 2 divisors, whose sum is σ = 18002555718342. Its totient is φ = 18002555718340.

The previous prime is 18002555718307. The next prime is 18002555718401. The reversal of 18002555718341 is 14381755520081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17524689062500 + 477866655841 = 4186250^2 + 691279^2 .

It is an emirp because it is prime and its reverse (14381755520081) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18002555718341 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18002555718341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18002555718841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9001277859170 + 9001277859171.

It is an arithmetic number, because the mean of its divisors is an integer number (9001277859171).

Almost surely, 2^{18002555718341} is an apocalyptic number.

It is an amenable number.

18002555718341 is a deficient number, since it is larger than the sum of its proper divisors (1).

18002555718341 is an equidigital number, since it uses as much as digits as its factorization.

18002555718341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344000, while the sum is 50.

The spelling of 18002555718341 in words is "eighteen trillion, two billion, five hundred fifty-five million, seven hundred eighteen thousand, three hundred forty-one".