161160559 has 12 divisors (see below), whose sum is σ = 187680024. Its totient is φ = 137984784.

The previous prime is 161160551. The next prime is 161160589. The reversal of 161160559 is 955061161.

It is not a de Polignac number, because 161160559 - 2³ = 161160551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161160551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80697 + ... + 82669.

It is an arithmetic number, because the mean of its divisors is an integer number (15640002).

Almost surely, 2^161160559 is an apocalyptic number.

161160559 is a deficient number, since it is larger than the sum of its proper divisors (26519465).

161160559 is a wasteful number, since it uses less digits than its factorization.

161160559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3654 (or 3647 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 161160559 is about 12694.9028747762. The cubic root of 161160559 is about 544.1929631471.

The spelling of 161160559 in words is "one hundred sixty-one million, one hundred sixty thousand, five hundred fifty-nine".