16159941161 has 32 divisors (see below), whose sum is σ = 21222915840. Its totient is φ = 11946921984.

The previous prime is 16159941157. The next prime is 16159941163. The reversal of 16159941161 is 16114995161.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16159941161 - 2² = 16159941157 is a prime.

It is a super-2 number, since 2×16159941161² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16159941163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62201 + ... + 190233.

It is an arithmetic number, because the mean of its divisors is an integer number (663216120).

Almost surely, 2^16159941161 is an apocalyptic number.

It is an amenable number.

16159941161 is a deficient number, since it is larger than the sum of its proper divisors (5062974679).

16159941161 is a wasteful number, since it uses less digits than its factorization.

16159941161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128145.

The product of its digits is 58320, while the sum is 44.

The spelling of 16159941161 in words is "sixteen billion, one hundred fifty-nine million, nine hundred forty-one thousand, one hundred sixty-one".