220616620 has 36 divisors (see below), whose sum is σ = 538937280. Its totient is φ = 75639648.

The previous prime is 220616603. The next prime is 220616689. The reversal of 220616620 is 26616022.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111580 + ... + 113539.

It is an arithmetic number, because the mean of its divisors is an integer number (14970480).

Almost surely, 2^220616620 is an apocalyptic number.

220616620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220616620 is an abundant number, since it is smaller than the sum of its proper divisors (318320660).

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

220616620 is a wasteful number, since it uses less digits than its factorization.

220616620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225142 (or 225133 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 220616620 is about 14853.1686855028. The cubic root of 220616620 is about 604.2445503294.

The spelling of 220616620 in words is "two hundred twenty million, six hundred sixteen thousand, six hundred twenty".