161367562141 has 2 divisors, whose sum is σ = 161367562142. Its totient is φ = 161367562140.

The previous prime is 161367562133. The next prime is 161367562199. The reversal of 161367562141 is 141265763161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154878454116 + 6489108025 = 393546^2 + 80555^2 .

It is a cyclic number.

It is not a de Polignac number, because 161367562141 - 2³ = 161367562133 is a prime.

It is a super-2 number, since 2×161367562141² (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 (161367562121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80683781070 + 80683781071.

It is an arithmetic number, because the mean of its divisors is an integer number (80683781071).

Almost surely, 2^161367562141 is an apocalyptic number.

It is an amenable number.

161367562141 is a deficient number, since it is larger than the sum of its proper divisors (1).

161367562141 is an equidigital number, since it uses as much as digits as its factorization.

161367562141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The spelling of 161367562141 in words is "one hundred sixty-one billion, three hundred sixty-seven million, five hundred sixty-two thousand, one hundred forty-one".