161442146144 has 24 divisors (see below), whose sum is σ = 336535651368. Its totient is φ = 75972774400.

The previous prime is 161442146141. The next prime is 161442146183. The reversal of 161442146144 is 441641244161.

161442146144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 161442146098 and 161442146107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161442146141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148383782 + ... + 148384869.

It is an arithmetic number, because the mean of its divisors is an integer number (14022318807).

Almost surely, 2^161442146144 is an apocalyptic number.

It is an amenable number.

161442146144 is an abundant number, since it is smaller than the sum of its proper divisors (175093505224).

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

161442146144 is a wasteful number, since it uses less digits than its factorization.

161442146144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296768678 (or 296768670 counting only the distinct ones).

The product of its digits is 73728, while the sum is 38.

The spelling of 161442146144 in words is "one hundred sixty-one billion, four hundred forty-two million, one hundred forty-six thousand, one hundred forty-four".