161043592043 has 2 divisors, whose sum is σ = 161043592044. Its totient is φ = 161043592042.

The previous prime is 161043592037. The next prime is 161043592081. The reversal of 161043592043 is 340295340161.

It is an a-pointer prime, because the next prime (161043592081) can be obtained adding 161043592043 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161043592043 - 2³⁴ = 143863722859 is a prime.

It is a super-2 number, since 2×161043592043² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 161043591988 and 161043592006.

It is not a weakly prime, because it can be changed into another prime (161043592343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80521796021 + 80521796022.

It is an arithmetic number, because the mean of its divisors is an integer number (80521796022).

Almost surely, 2^161043592043 is an apocalyptic number.

161043592043 is a deficient number, since it is larger than the sum of its proper divisors (1).

161043592043 is an equidigital number, since it uses as much as digits as its factorization.

161043592043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 161043592043 in words is "one hundred sixty-one billion, forty-three million, five hundred ninety-two thousand, forty-three".