163364316321 has 8 divisors (see below), whose sum is σ = 222884648800. Its totient is φ = 106376764032.

The previous prime is 163364316307. The next prime is 163364316337. The reversal of 163364316321 is 123613463361.

It is a happy number.

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

It is not a de Polignac number, because 163364316321 - 2¹⁰ = 163364315297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163364316321.

It is not an unprimeable number, because it can be changed into a prime (163364316391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 633194896 + ... + 633195153.

It is an arithmetic number, because the mean of its divisors is an integer number (27860581100).

Almost surely, 2^163364316321 is an apocalyptic number.

It is an amenable number.

163364316321 is a deficient number, since it is larger than the sum of its proper divisors (59520332479).

163364316321 is a wasteful number, since it uses less digits than its factorization.

163364316321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266390095.

The product of its digits is 139968, while the sum is 39.

Adding to 163364316321 its reverse (123613463361), we get a palindrome (286977779682).

The spelling of 163364316321 in words is "one hundred sixty-three billion, three hundred sixty-four million, three hundred sixteen thousand, three hundred twenty-one".