220655413500 has 192 divisors, whose sum is σ = 651716782080. Its totient is φ = 58004294400.

The previous prime is 220655413487. The next prime is 220655413529. The reversal of 220655413500 is 5314556022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 107478474 + ... + 107480526.

It is an arithmetic number, because the mean of its divisors is an integer number (3394358240).

Almost surely, 2^220655413500 is an apocalyptic number.

220655413500 is a gapful number since it is divisible by the number (20) 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 220655413500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325858391040).

220655413500 is an abundant number, since it is smaller than the sum of its proper divisors (431061368580).

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

220655413500 is a wasteful number, since it uses less digits than its factorization.

220655413500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061 (or 3049 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 220655413500 its reverse (5314556022), we get a palindrome (225969969522).

The spelling of 220655413500 in words is "two hundred twenty billion, six hundred fifty-five million, four hundred thirteen thousand, five hundred".