220549239420 has 24 divisors (see below), whose sum is σ = 617537870544. Its totient is φ = 58813130496.

The previous prime is 220549239343. The next prime is 220549239437. The reversal of 220549239420 is 24932945022.

220549239420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1837910269 + ... + 1837910388.

It is an arithmetic number, because the mean of its divisors is an integer number (25730744606).

Almost surely, 2^220549239420 is an apocalyptic number.

220549239420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220549239420 is an abundant number, since it is smaller than the sum of its proper divisors (396988631124).

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

220549239420 is a wasteful number, since it uses less digits than its factorization.

220549239420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675820669 (or 3675820667 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 220549239420 in words is "two hundred twenty billion, five hundred forty-nine million, two hundred thirty-nine thousand, four hundred twenty".