68016211117 has 2 divisors, whose sum is σ = 68016211118. Its totient is φ = 68016211116.

The previous prime is 68016211079. The next prime is 68016211243. The reversal of 68016211117 is 71111261086.

68016211117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67776394921 + 239816196 = 260339^2 + 15486^2 .

It is a cyclic number.

It is not a de Polignac number, because 68016211117 - 2¹¹ = 68016209069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68016211717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34008105558 + 34008105559.

It is an arithmetic number, because the mean of its divisors is an integer number (34008105559).

Almost surely, 2^68016211117 is an apocalyptic number.

It is an amenable number.

68016211117 is a deficient number, since it is larger than the sum of its proper divisors (1).

68016211117 is an equidigital number, since it uses as much as digits as its factorization.

68016211117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 34.

The spelling of 68016211117 in words is "sixty-eight billion, sixteen million, two hundred eleven thousand, one hundred seventeen".