164361204220 has 12 divisors (see below), whose sum is σ = 345158528904. Its totient is φ = 65744481680.

The previous prime is 164361204191. The next prime is 164361204239. The reversal of 164361204220 is 22402163461.

164361204220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4109030086 + ... + 4109030125.

It is an arithmetic number, because the mean of its divisors is an integer number (28763210742).

Almost surely, 2^164361204220 is an apocalyptic number.

164361204220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164361204220 is an abundant number, since it is smaller than the sum of its proper divisors (180797324684).

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

164361204220 is a wasteful number, since it uses less digits than its factorization.

164361204220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8218060220 (or 8218060218 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 164361204220 its reverse (22402163461), we get a palindrome (186763367681).

The spelling of 164361204220 in words is "one hundred sixty-four billion, three hundred sixty-one million, two hundred four thousand, two hundred twenty".