220565241145 has 4 divisors (see below), whose sum is σ = 264678289380. Its totient is φ = 176452192912.

The previous prime is 220565241037. The next prime is 220565241151. The reversal of 220565241145 is 541142565022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541142565022 = 2 ⋅270571282511.

It can be written as a sum of positive squares in 2 ways, for example, as 23684902201 + 196880338944 = 153899^2 + 443712^2 .

It is a cyclic number.

It is not a de Polignac number, because 220565241145 - 2³³ = 211975306553 is a prime.

It is a super-2 number, since 2×220565241145² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22056524110 + ... + 22056524119.

It is an arithmetic number, because the mean of its divisors is an integer number (66169572345).

Almost surely, 2^220565241145 is an apocalyptic number.

It is an amenable number.

220565241145 is a deficient number, since it is larger than the sum of its proper divisors (44113048235).

220565241145 is an equidigital number, since it uses as much as digits as its factorization.

220565241145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44113048234.

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 220565241145 in words is "two hundred twenty billion, five hundred sixty-five million, two hundred forty-one thousand, one hundred forty-five".