220349672320 has 32 divisors (see below), whose sum is σ = 526773436920. Its totient is φ = 88139868672.

The previous prime is 220349672317. The next prime is 220349672329. The reversal of 220349672320 is 23276943022.

220349672320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220349672329) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 172147542 + ... + 172148821.

Almost surely, 2^220349672320 is an apocalyptic number.

220349672320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220349672320 is an abundant number, since it is smaller than the sum of its proper divisors (306423764600).

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

220349672320 is an equidigital number, since it uses as much as digits as its factorization.

220349672320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344296382 (or 344296370 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 220349672320 in words is "two hundred twenty billion, three hundred forty-nine million, six hundred seventy-two thousand, three hundred twenty".