161130055349 has 2 divisors, whose sum is σ = 161130055350. Its totient is φ = 161130055348.

The previous prime is 161130055297. The next prime is 161130055369. The reversal of 161130055349 is 943550031161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81051243025 + 80078812324 = 284695^2 + 282982^2 .

It is an emirp because it is prime and its reverse (943550031161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161130055349 - 2²⁴ = 161113278133 is a prime.

It is a super-5 number, since 5×161130055349⁵ (a number of 57 digits) contains 55555 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161130055369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80565027674 + 80565027675.

It is an arithmetic number, because the mean of its divisors is an integer number (80565027675).

Almost surely, 2^161130055349 is an apocalyptic number.

It is an amenable number.

161130055349 is a deficient number, since it is larger than the sum of its proper divisors (1).

161130055349 is an equidigital number, since it uses as much as digits as its factorization.

161130055349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 38.

The spelling of 161130055349 in words is "one hundred sixty-one billion, one hundred thirty million, fifty-five thousand, three hundred forty-nine".