161160142577449 has 2 divisors, whose sum is σ = 161160142577450. Its totient is φ = 161160142577448.

The previous prime is 161160142577443. The next prime is 161160142577507. The reversal of 161160142577449 is 944775241061161.

It is an a-pointer prime, because the next prime (161160142577507) can be obtained adding 161160142577449 to its sum of digits (58).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80988390416025 + 80171752161424 = 8999355^2 + 8953868^2 .

It is a cyclic number.

It is not a de Polignac number, because 161160142577449 - 2¹⁹ = 161160142053161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161160142577393 and 161160142577402.

It is not a weakly prime, because it can be changed into another prime (161160142577443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80580071288724 + 80580071288725.

It is an arithmetic number, because the mean of its divisors is an integer number (80580071288725).

Almost surely, 2^{161160142577449} is an apocalyptic number.

It is an amenable number.

161160142577449 is a deficient number, since it is larger than the sum of its proper divisors (1).

161160142577449 is an equidigital number, since it uses as much as digits as its factorization.

161160142577449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 161160142577449 in words is "one hundred sixty-one trillion, one hundred sixty billion, one hundred forty-two million, five hundred seventy-seven thousand, four hundred forty-nine".