220640602050 has 450 divisors, whose sum is σ = 685591444395. Its totient is φ = 52611768000.

The previous prime is 220640602043. The next prime is 220640602051. The reversal of 220640602050 is 50206046022.

220640602050 is a `hidden beast` number, since 2 + 2 + 0 + 6 + 4 + 0 + 602 + 0 + 50 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 342731169 + 220297870881 = 18513^2 + 469359^2 .

It is a tau number, because it is divible by the number of its divisors (450).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332145.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220640602051) by changing a digit.

It is a polite number, since it can be written in 224 ways as a sum of consecutive naturals, for example, 3617059020 + ... + 3617059080.

Almost surely, 2^220640602050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220640602050

220640602050 is an abundant number, since it is smaller than the sum of its proper divisors (464950842345).

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

220640602050 is an frugal number, since it uses more digits than its factorization.

220640602050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 220640602050 its reverse (50206046022), we get a palindrome (270846648072).

The spelling of 220640602050 in words is "two hundred twenty billion, six hundred forty million, six hundred two thousand, fifty".