163489984361 has 16 divisors (see below), whose sum is σ = 187840700160. Its totient is φ = 140729017680.

The previous prime is 163489984327. The next prime is 163489984363.

163489984361 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163489984361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163489984294 and 163489984303.

It is not an unprimeable number, because it can be changed into a prime (163489984363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180710 + ... + 599696.

It is an arithmetic number, because the mean of its divisors is an integer number (11740043760).

Almost surely, 2^163489984361 is an apocalyptic number.

163489984361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163489984361 is a deficient number, since it is larger than the sum of its proper divisors (24350715799).

163489984361 is a wasteful number, since it uses less digits than its factorization.

163489984361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420884.

The product of its digits is 26873856, while the sum is 62.

The spelling of 163489984361 in words is "one hundred sixty-three billion, four hundred eighty-nine million, nine hundred eighty-four thousand, three hundred sixty-one".