220865507072 has 108 divisors (see below), whose sum is σ = 530531993880. Its totient is φ = 91392473088.

The previous prime is 220865507069. The next prime is 220865507131. The reversal of 220865507072 is 270705568022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60203 + ... + 667349.

Almost surely, 2^220865507072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220865507072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265265996940).

220865507072 is an abundant number, since it is smaller than the sum of its proper divisors (309666486808).

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

220865507072 is an equidigital number, since it uses as much as digits as its factorization.

220865507072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607206 (or 607185 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 44.

The spelling of 220865507072 in words is "two hundred twenty billion, eight hundred sixty-five million, five hundred seven thousand, seventy-two".