161102734171 has 4 divisors (see below), whose sum is σ = 161145369000. Its totient is φ = 161060099344.

The previous prime is 161102734147. The next prime is 161102734189. The reversal of 161102734171 is 171437201161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 171437201161 = 7591 ⋅22584271.

It is a cyclic number.

It is not a de Polignac number, because 161102734171 - 2⁷ = 161102734043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161102734141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21311746 + ... + 21319303.

It is an arithmetic number, because the mean of its divisors is an integer number (40286342250).

Almost surely, 2^161102734171 is an apocalyptic number.

161102734171 is a deficient number, since it is larger than the sum of its proper divisors (42634829).

161102734171 is an equidigital number, since it uses as much as digits as its factorization.

161102734171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42634828.

The product of its (nonzero) digits is 7056, while the sum is 34.

The spelling of 161102734171 in words is "one hundred sixty-one billion, one hundred two million, seven hundred thirty-four thousand, one hundred seventy-one".