67716161173 has 2 divisors, whose sum is σ = 67716161174. Its totient is φ = 67716161172.

The previous prime is 67716161171. The next prime is 67716161287. The reversal of 67716161173 is 37116161776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67437337969 + 278823204 = 259687^2 + 16698^2 .

It is a cyclic number.

It is not a de Polignac number, because 67716161173 - 2¹ = 67716161171 is a prime.

Together with 67716161171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67716161171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33858080586 + 33858080587.

It is an arithmetic number, because the mean of its divisors is an integer number (33858080587).

Almost surely, 2^67716161173 is an apocalyptic number.

It is an amenable number.

67716161173 is a deficient number, since it is larger than the sum of its proper divisors (1).

67716161173 is an equidigital number, since it uses as much as digits as its factorization.

67716161173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 46.

The spelling of 67716161173 in words is "sixty-seven billion, seven hundred sixteen million, one hundred sixty-one thousand, one hundred seventy-three".