161342192371 has 4 divisors (see below), whose sum is σ = 161346682000. Its totient is φ = 161337702744.

The previous prime is 161342192369. The next prime is 161342192419. The reversal of 161342192371 is 173291243161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161342192371 - 2¹ = 161342192369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161342192351) 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, 2190471 + ... + 2262928.

It is an arithmetic number, because the mean of its divisors is an integer number (40336670500).

Almost surely, 2^161342192371 is an apocalyptic number.

161342192371 is a deficient number, since it is larger than the sum of its proper divisors (4489629).

161342192371 is an equidigital number, since it uses as much as digits as its factorization.

161342192371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4489628.

The product of its digits is 54432, while the sum is 40.

The spelling of 161342192371 in words is "one hundred sixty-one billion, three hundred forty-two million, one hundred ninety-two thousand, three hundred seventy-one".