161105035141 has 24 divisors (see below), whose sum is σ = 175511838600. Its totient is φ = 147762585600.

The previous prime is 161105035123. The next prime is 161105035219. The reversal of 161105035141 is 141530501161.

It can be written as a sum of positive squares in 12 ways, for example, as 40068900 + 161064966241 = 6330^2 + 401329^2 .

It is a de Polignac number, because none of the positive numbers 2^k-161105035141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161105035241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11142685 + ... + 11157133.

It is an arithmetic number, because the mean of its divisors is an integer number (7312993275).

Almost surely, 2^161105035141 is an apocalyptic number.

It is an amenable number.

161105035141 is a deficient number, since it is larger than the sum of its proper divisors (14406803459).

161105035141 is a wasteful number, since it uses less digits than its factorization.

161105035141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15465 (or 15448 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 28.

The spelling of 161105035141 in words is "one hundred sixty-one billion, one hundred five million, thirty-five thousand, one hundred forty-one".