220616608 has 12 divisors (see below), whose sum is σ = 434339010. Its totient is φ = 110308288.

The previous prime is 220616603. The next prime is 220616689. The reversal of 220616608 is 806616022.

It can be written as a sum of positive squares in only one way, i.e., 199713424 + 20903184 = 14132^2 + 4572^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220616608.

It is not an unprimeable number, because it can be changed into a prime (220616603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3447103 + ... + 3447166.

Almost surely, 2^220616608 is an apocalyptic number.

It is an amenable number.

220616608 is a deficient number, since it is larger than the sum of its proper divisors (213722402).

220616608 is an equidigital number, since it uses as much as digits as its factorization.

220616608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6894279 (or 6894271 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 220616608 is about 14853.1682815486. The cubic root of 220616608 is about 604.2445393739.

The spelling of 220616608 in words is "two hundred twenty million, six hundred sixteen thousand, six hundred eight".