220741585682 has 6 divisors (see below), whose sum is σ = 331113375189. Its totient is φ = 110370460620.

The previous prime is 220741585657. The next prime is 220741585699. The reversal of 220741585682 is 286585147022.

It can be written as a sum of positive squares in 2 ways, for example, as 189267632401 + 31473953281 = 435049^2 + 177409^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332221.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220741585682.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 498332 + ... + 830552.

Almost surely, 2^220741585682 is an apocalyptic number.

220741585682 is a deficient number, since it is larger than the sum of its proper divisors (110371789507).

220741585682 is an frugal number, since it uses more digits than its factorization.

220741585682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664444 (or 332223 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 50.

Multiplying 220741585682 by its sum of digits (50), we get a square (11037079284100 = 3322210²).

The spelling of 220741585682 in words is "two hundred twenty billion, seven hundred forty-one million, five hundred eighty-five thousand, six hundred eighty-two".