167601667613 has 2 divisors, whose sum is σ = 167601667614. Its totient is φ = 167601667612.

The previous prime is 167601667559. The next prime is 167601667769. The reversal of 167601667613 is 316766106761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85139653369 + 82462014244 = 291787^2 + 287162^2 .

It is a cyclic number.

It is not a de Polignac number, because 167601667613 - 2⁶ = 167601667549 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (167601661613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83800833806 + 83800833807.

It is an arithmetic number, because the mean of its divisors is an integer number (83800833807).

Almost surely, 2^167601667613 is an apocalyptic number.

It is an amenable number.

167601667613 is a deficient number, since it is larger than the sum of its proper divisors (1).

167601667613 is an equidigital number, since it uses as much as digits as its factorization.

167601667613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 167601667613 in words is "one hundred sixty-seven billion, six hundred one million, six hundred sixty-seven thousand, six hundred thirteen".