220205164 has 6 divisors (see below), whose sum is σ = 385359044. Its totient is φ = 110102580.

The previous prime is 220205123. The next prime is 220205201. The reversal of 220205164 is 461502022.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27525642 + ... + 27525649.

Almost surely, 2^220205164 is an apocalyptic number.

It is an amenable number.

220205164 is a deficient number, since it is larger than the sum of its proper divisors (165153880).

220205164 is a wasteful number, since it uses less digits than its factorization.

220205164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55051295 (or 55051293 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 220205164 is about 14839.3114395514. The cubic root of 220205164 is about 603.8686723817.

Adding to 220205164 its reverse (461502022), we get a palindrome (681707186).

The spelling of 220205164 in words is "two hundred twenty million, two hundred five thousand, one hundred sixty-four".