163301305220 has 24 divisors (see below), whose sum is σ = 343527102744. Its totient is φ = 65207310336.

The previous prime is 163301305207. The next prime is 163301305231. The reversal of 163301305220 is 22503103361.

It can be written as a sum of positive squares in 4 ways, for example, as 85385515264 + 77915789956 = 292208^2 + 279134^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 163301305220.

It is an unprimeable number.

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, 7063907 + ... + 7086986.

It is an arithmetic number, because the mean of its divisors is an integer number (14313629281).

Almost surely, 2^163301305220 is an apocalyptic number.

163301305220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163301305220 is an abundant number, since it is smaller than the sum of its proper divisors (180225797524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163301305220 is a wasteful number, since it uses less digits than its factorization.

163301305220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14151479 (or 14151477 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 163301305220 its reverse (22503103361), we get a palindrome (185804408581).

The spelling of 163301305220 in words is "one hundred sixty-three billion, three hundred one million, three hundred five thousand, two hundred twenty".