161173711268327 has 2 divisors, whose sum is σ = 161173711268328. Its totient is φ = 161173711268326.

The previous prime is 161173711268267. The next prime is 161173711268333. The reversal of 161173711268327 is 723862117371161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161173711268327 - 2²⁰ = 161173710219751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161173711568327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80586855634163 + 80586855634164.

It is an arithmetic number, because the mean of its divisors is an integer number (80586855634164).

Almost surely, 2^{161173711268327} is an apocalyptic number.

161173711268327 is a deficient number, since it is larger than the sum of its proper divisors (1).

161173711268327 is an equidigital number, since it uses as much as digits as its factorization.

161173711268327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 56.

The spelling of 161173711268327 in words is "one hundred sixty-one trillion, one hundred seventy-three billion, seven hundred eleven million, two hundred sixty-eight thousand, three hundred twenty-seven".