216668777031167 has 2 divisors, whose sum is σ = 216668777031168. Its totient is φ = 216668777031166.

The previous prime is 216668777031163. The next prime is 216668777031199. The reversal of 216668777031167 is 761130777866612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216668777031167 - 2² = 216668777031163 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216668777031097 and 216668777031106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216668777031163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108334388515583 + 108334388515584.

It is an arithmetic number, because the mean of its divisors is an integer number (108334388515584).

Almost surely, 2^{216668777031167} is an apocalyptic number.

216668777031167 is a deficient number, since it is larger than the sum of its proper divisors (1).

216668777031167 is an equidigital number, since it uses as much as digits as its factorization.

216668777031167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 149361408, while the sum is 68.

The spelling of 216668777031167 in words is "two hundred sixteen trillion, six hundred sixty-eight billion, seven hundred seventy-seven million, thirty-one thousand, one hundred sixty-seven".