218563090411 has 2 divisors, whose sum is σ = 218563090412. Its totient is φ = 218563090410.

The previous prime is 218563090399. The next prime is 218563090451. The reversal of 218563090411 is 114090365812.

It is an a-pointer prime, because the next prime (218563090451) can be obtained adding 218563090411 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 218563090411 - 2⁷ = 218563090283 is a prime.

It is not a weakly prime, because it can be changed into another prime (218563090451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109281545205 + 109281545206.

It is an arithmetic number, because the mean of its divisors is an integer number (109281545206).

Almost surely, 2^218563090411 is an apocalyptic number.

218563090411 is a deficient number, since it is larger than the sum of its proper divisors (1).

218563090411 is an equidigital number, since it uses as much as digits as its factorization.

218563090411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 218563090411 in words is "two hundred eighteen billion, five hundred sixty-three million, ninety thousand, four hundred eleven".