167861168834197 has 2 divisors, whose sum is σ = 167861168834198. Its totient is φ = 167861168834196.

The previous prime is 167861168834171. The next prime is 167861168834209. The reversal of 167861168834197 is 791438861168761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154702202188356 + 13158966645841 = 12437934^2 + 3627529^2 .

It is a cyclic number.

It is not a de Polignac number, because 167861168834197 - 2³⁹ = 167311413020309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167861168834137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83930584417098 + 83930584417099.

It is an arithmetic number, because the mean of its divisors is an integer number (83930584417099).

Almost surely, 2^{167861168834197} is an apocalyptic number.

It is an amenable number.

167861168834197 is a deficient number, since it is larger than the sum of its proper divisors (1).

167861168834197 is an equidigital number, since it uses as much as digits as its factorization.

167861168834197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 585252864, while the sum is 76.

The spelling of 167861168834197 in words is "one hundred sixty-seven trillion, eight hundred sixty-one billion, one hundred sixty-eight million, eight hundred thirty-four thousand, one hundred ninety-seven".