161144112844 has 48 divisors (see below), whose sum is σ = 339008060160. Its totient is φ = 66040511040.

The previous prime is 161144112823. The next prime is 161144112853. The reversal of 161144112844 is 448211441161.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3251224 + ... + 3300415.

It is an arithmetic number, because the mean of its divisors is an integer number (7062667920).

Almost surely, 2^161144112844 is an apocalyptic number.

It is an amenable number.

161144112844 is an abundant number, since it is smaller than the sum of its proper divisors (177863947316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161144112844 is a wasteful number, since it uses less digits than its factorization.

161144112844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6551710 (or 6551708 counting only the distinct ones).

The product of its digits is 24576, while the sum is 37.

The spelling of 161144112844 in words is "one hundred sixty-one billion, one hundred forty-four million, one hundred twelve thousand, eight hundred forty-four".