18153787216163 has 2 divisors, whose sum is σ = 18153787216164. Its totient is φ = 18153787216162.

The previous prime is 18153787216153. The next prime is 18153787216217. The reversal of 18153787216163 is 36161278735181.

It is a weak prime.

It is an emirp because it is prime and its reverse (36161278735181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18153787216163 - 2¹⁸ = 18153786954019 is a prime.

It is not a weakly prime, because it can be changed into another prime (18153787216133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9076893608081 + 9076893608082.

It is an arithmetic number, because the mean of its divisors is an integer number (9076893608082).

Almost surely, 2^{18153787216163} is an apocalyptic number.

18153787216163 is a deficient number, since it is larger than the sum of its proper divisors (1).

18153787216163 is an equidigital number, since it uses as much as digits as its factorization.

18153787216163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 59.

The spelling of 18153787216163 in words is "eighteen trillion, one hundred fifty-three billion, seven hundred eighty-seven million, two hundred sixteen thousand, one hundred sixty-three".