161941341325 has 6 divisors (see below), whose sum is σ = 200807263274. Its totient is φ = 129553073040.

The previous prime is 161941341313. The next prime is 161941341343. The reversal of 161941341325 is 523143149161.

It can be written as a sum of positive squares in 3 ways, for example, as 4313929 + 161937027396 = 2077^2 + 402414^2 .

It is not a de Polignac number, because 161941341325 - 2³⁵ = 127581602957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3238826802 + ... + 3238826851.

Almost surely, 2^161941341325 is an apocalyptic number.

It is an amenable number.

161941341325 is a deficient number, since it is larger than the sum of its proper divisors (38865921949).

161941341325 is an equidigital number, since it uses as much as digits as its factorization.

161941341325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6477653663 (or 6477653658 counting only the distinct ones).

The product of its digits is 77760, while the sum is 40.

The spelling of 161941341325 in words is "one hundred sixty-one billion, nine hundred forty-one million, three hundred forty-one thousand, three hundred twenty-five".