18605010559 has 2 divisors, whose sum is σ = 18605010560. Its totient is φ = 18605010558.

The previous prime is 18605010503. The next prime is 18605010563. The reversal of 18605010559 is 95501050681.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18605010559 - 2¹⁵ = 18604977791 is a prime.

It is a super-2 number, since 2×18605010559² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18605014559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9302505279 + 9302505280.

It is an arithmetic number, because the mean of its divisors is an integer number (9302505280).

Almost surely, 2^18605010559 is an apocalyptic number.

18605010559 is a deficient number, since it is larger than the sum of its proper divisors (1).

18605010559 is an equidigital number, since it uses as much as digits as its factorization.

18605010559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 40.

The spelling of 18605010559 in words is "eighteen billion, six hundred five million, ten thousand, five hundred fifty-nine".