220481840309 has 8 divisors (see below), whose sum is σ = 229307151360. Its totient is φ = 211807389456.

The previous prime is 220481840303. The next prime is 220481840317. The reversal of 220481840309 is 903048184022.

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

It is a cyclic number.

It is not a de Polignac number, because 220481840309 - 2³² = 216186873013 is a prime.

It is a super-2 number, since 2×220481840309² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220481840303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37712069 + ... + 37717914.

It is an arithmetic number, because the mean of its divisors is an integer number (28663393920).

Almost surely, 2^220481840309 is an apocalyptic number.

It is an amenable number.

220481840309 is a deficient number, since it is larger than the sum of its proper divisors (8825311051).

220481840309 is an equidigital number, since it uses as much as digits as its factorization.

220481840309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75430099.

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 220481840309 in words is "two hundred twenty billion, four hundred eighty-one million, eight hundred forty thousand, three hundred nine".