220489798500 has 288 divisors, whose sum is σ = 721202227200. Its totient is φ = 56640057600.

The previous prime is 220489798489. The next prime is 220489798513. The reversal of 220489798500 is 5897984022.

220489798500 is a `hidden beast` number, since 2 + 2 + 0 + 48 + 9 + 7 + 98 + 500 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 65639821 + ... + 65643179.

It is an arithmetic number, because the mean of its divisors is an integer number (2504174400).

Almost surely, 2^220489798500 is an apocalyptic number.

220489798500 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 220489798500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360601113600).

220489798500 is an abundant number, since it is smaller than the sum of its proper divisors (500712428700).

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

220489798500 is a wasteful number, since it uses less digits than its factorization.

220489798500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916 (or 3901 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 220489798500 in words is "two hundred twenty billion, four hundred eighty-nine million, seven hundred ninety-eight thousand, five hundred".