220265223165 has 48 divisors (see below), whose sum is σ = 411207818112. Its totient is φ = 108426114432.

The previous prime is 220265223151. The next prime is 220265223187. The reversal of 220265223165 is 561322562022.

220265223165 is a `hidden beast` number, since 2 + 20 + 26 + 522 + 31 + 65 = 666.

It is not a de Polignac number, because 220265223165 - 2⁵ = 220265223133 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7486774 + ... + 7516136.

It is an arithmetic number, because the mean of its divisors is an integer number (8566829544).

Almost surely, 2^220265223165 is an apocalyptic number.

It is an amenable number.

220265223165 is a deficient number, since it is larger than the sum of its proper divisors (190942594947).

220265223165 is a wasteful number, since it uses less digits than its factorization.

220265223165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42210 (or 42207 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 220265223165 its reverse (561322562022), we get a palindrome (781587785187).

The spelling of 220265223165 in words is "two hundred twenty billion, two hundred sixty-five million, two hundred twenty-three thousand, one hundred sixty-five".