220028983285 has 8 divisors (see below), whose sum is σ = 266648986296. Its totient is φ = 174280382400.

The previous prime is 220028983243. The next prime is 220028983319. The reversal of 220028983285 is 582389820022.

It can be written as a sum of positive squares in 4 ways, for example, as 120019980721 + 100009002564 = 346439^2 + 316242^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220028983285 - 2¹⁵ = 220028950517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217849974 + ... + 217850983.

It is an arithmetic number, because the mean of its divisors is an integer number (33331123287).

Almost surely, 2^220028983285 is an apocalyptic number.

It is an amenable number.

220028983285 is a deficient number, since it is larger than the sum of its proper divisors (46620003011).

220028983285 is a wasteful number, since it uses less digits than its factorization.

220028983285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435701063.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 220028983285 in words is "two hundred twenty billion, twenty-eight million, nine hundred eighty-three thousand, two hundred eighty-five".