161412913271 has 4 divisors (see below), whose sum is σ = 163226541600. Its totient is φ = 159599284944.

The previous prime is 161412913247. The next prime is 161412913339. The reversal of 161412913271 is 172319214161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 172319214161 = 84239 ⋅2045599.

It is a cyclic number.

It is not a de Polignac number, because 161412913271 - 2²² = 161408718967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161412913171) 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, 906814031 + ... + 906814208.

It is an arithmetic number, because the mean of its divisors is an integer number (40806635400).

Almost surely, 2^161412913271 is an apocalyptic number.

161412913271 is a deficient number, since it is larger than the sum of its proper divisors (1813628329).

161412913271 is an equidigital number, since it uses as much as digits as its factorization.

161412913271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813628328.

The product of its digits is 18144, while the sum is 38.

The spelling of 161412913271 in words is "one hundred sixty-one billion, four hundred twelve million, nine hundred thirteen thousand, two hundred seventy-one".