163617444616 has 32 divisors (see below), whose sum is σ = 307614009600. Its totient is φ = 81587257920.

The previous prime is 163617444611. The next prime is 163617444623. The reversal of 163617444616 is 616444716361.

It is a self number, because there is not a number n which added to its sum of digits gives 163617444616.

It is not an unprimeable number, because it can be changed into a prime (163617444611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6590146 + ... + 6614926.

It is an arithmetic number, because the mean of its divisors is an integer number (9612937800).

Almost surely, 2^163617444616 is an apocalyptic number.

It is an amenable number.

163617444616 is a deficient number, since it is larger than the sum of its proper divisors (143996564984).

163617444616 is a wasteful number, since it uses less digits than its factorization.

163617444616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26989 (or 26985 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 49.

The spelling of 163617444616 in words is "one hundred sixty-three billion, six hundred seventeen million, four hundred forty-four thousand, six hundred sixteen".