163604442416144 has 20 divisors (see below), whose sum is σ = 317393676554796. Its totient is φ = 81696396853632.

The previous prime is 163604442416141. The next prime is 163604442416167. The reversal of 163604442416144 is 441614244406361.

It can be written as a sum of positive squares in 2 ways, for example, as 66322911756544 + 97281530659600 = 8143888^2 + 9863140^2 .

It is a junction number, because it is equal to n+sod(n) for n = 163604442416092 and 163604442416101.

It is not an unprimeable number, because it can be changed into a prime (163604442416141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6614009399 + ... + 6614034134.

Almost surely, 2^{163604442416144} is an apocalyptic number.

It is an amenable number.

163604442416144 is a deficient number, since it is larger than the sum of its proper divisors (153789234138652).

163604442416144 is a wasteful number, since it uses less digits than its factorization.

163604442416144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13228044314 (or 13228044308 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 50.

The spelling of 163604442416144 in words is "one hundred sixty-three trillion, six hundred four billion, four hundred forty-two million, four hundred sixteen thousand, one hundred forty-four".