218001522315089 has 2 divisors, whose sum is σ = 218001522315090. Its totient is φ = 218001522315088.

The previous prime is 218001522315013. The next prime is 218001522315103. The reversal of 218001522315089 is 980513225100812.

218001522315089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216786163795600 + 1215358519489 = 14723660^2 + 1102433^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-218001522315089 is a prime.

It is not a weakly prime, because it can be changed into another prime (218001522315589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109000761157544 + 109000761157545.

It is an arithmetic number, because the mean of its divisors is an integer number (109000761157545).

Almost surely, 2^{218001522315089} is an apocalyptic number.

It is an amenable number.

218001522315089 is a deficient number, since it is larger than the sum of its proper divisors (1).

218001522315089 is an equidigital number, since it uses as much as digits as its factorization.

218001522315089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 47.

The spelling of 218001522315089 in words is "two hundred eighteen trillion, one billion, five hundred twenty-two million, three hundred fifteen thousand, eighty-nine".