220554040256 has 56 divisors (see below), whose sum is σ = 477543760176. Its totient is φ = 100232017920.

The previous prime is 220554040253. The next prime is 220554040283. The reversal of 220554040256 is 652040455022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220554040253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3883940 + ... + 3940316.

It is an arithmetic number, because the mean of its divisors is an integer number (8527567146).

Almost surely, 2^220554040256 is an apocalyptic number.

It is an amenable number.

220554040256 is an abundant number, since it is smaller than the sum of its proper divisors (256989719920).

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

220554040256 is a wasteful number, since it uses less digits than its factorization.

220554040256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61957 (or 61947 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 220554040256 its reverse (652040455022), we get a palindrome (872594495278).

The spelling of 220554040256 in words is "two hundred twenty billion, five hundred fifty-four million, forty thousand, two hundred fifty-six".