220054503656 has 128 divisors (see below), whose sum is σ = 497505576960. Its totient is φ = 90248601600.

The previous prime is 220054503653. The next prime is 220054503679. The reversal of 220054503656 is 656305450022.

It is not an unprimeable number, because it can be changed into a prime (220054503653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2198165 + ... + 2296091.

It is an arithmetic number, because the mean of its divisors is an integer number (3886762320).

Almost surely, 2^220054503656 is an apocalyptic number.

220054503656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220054503656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248752788480).

220054503656 is an abundant number, since it is smaller than the sum of its proper divisors (277451073304).

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

220054503656 is a wasteful number, since it uses less digits than its factorization.

220054503656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98035 (or 98031 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 220054503656 its reverse (656305450022), we get a palindrome (876359953678).

The spelling of 220054503656 in words is "two hundred twenty billion, fifty-four million, five hundred three thousand, six hundred fifty-six".