163389967918 has 8 divisors (see below), whose sum is σ = 248187293280. Its totient is φ = 80660870160.

The previous prime is 163389967891. The next prime is 163389967919. The reversal of 163389967918 is 819769983361.

163389967918 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163389967919) 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 3 ways as a sum of consecutive naturals, for example, 517056703 + ... + 517057018.

It is an arithmetic number, because the mean of its divisors is an integer number (31023411660).

Almost surely, 2^163389967918 is an apocalyptic number.

163389967918 is a deficient number, since it is larger than the sum of its proper divisors (84797325362).

163389967918 is a wasteful number, since it uses less digits than its factorization.

163389967918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034113802.

The product of its digits is 105815808, while the sum is 70.

The spelling of 163389967918 in words is "one hundred sixty-three billion, three hundred eighty-nine million, nine hundred sixty-seven thousand, nine hundred eighteen".