163916494444 has 24 divisors (see below), whose sum is σ = 305031203568. Its totient is φ = 76806105600.

The previous prime is 163916494333. The next prime is 163916494451. The reversal of 163916494444 is 444494619361.

163916494444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5156982 + ... + 5188669.

It is an arithmetic number, because the mean of its divisors is an integer number (12709633482).

Almost surely, 2^163916494444 is an apocalyptic number.

It is an amenable number.

163916494444 is a deficient number, since it is larger than the sum of its proper divisors (141114709124).

163916494444 is a wasteful number, since it uses less digits than its factorization.

163916494444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10345905 (or 10345903 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 55.

The spelling of 163916494444 in words is "one hundred sixty-three billion, nine hundred sixteen million, four hundred ninety-four thousand, four hundred forty-four".