161341607941 has 2 divisors, whose sum is σ = 161341607942. Its totient is φ = 161341607940.

The previous prime is 161341607927. The next prime is 161341607953. The reversal of 161341607941 is 149706143161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161338788900 + 2819041 = 401670^2 + 1679^2 .

It is a cyclic number.

It is not a de Polignac number, because 161341607941 - 2⁹ = 161341607429 is a prime.

It is a super-2 number, since 2×161341607941² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161341607981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80670803970 + 80670803971.

It is an arithmetic number, because the mean of its divisors is an integer number (80670803971).

Almost surely, 2^161341607941 is an apocalyptic number.

It is an amenable number.

161341607941 is a deficient number, since it is larger than the sum of its proper divisors (1).

161341607941 is an equidigital number, since it uses as much as digits as its factorization.

161341607941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 161341607941 in words is "one hundred sixty-one billion, three hundred forty-one million, six hundred seven thousand, nine hundred forty-one".