220434947512 has 64 divisors (see below), whose sum is σ = 451062057600. Its totient is φ = 100386293760.

The previous prime is 220434947497. The next prime is 220434947531. The reversal of 220434947512 is 215749434022.

220434947512 is digitally balanced in base 3, 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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2691633 + ... + 2772319.

It is an arithmetic number, because the mean of its divisors is an integer number (7047844650).

Almost surely, 2^220434947512 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 220434947512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225531028800).

220434947512 is an abundant number, since it is smaller than the sum of its proper divisors (230627110088).

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

220434947512 is a wasteful number, since it uses less digits than its factorization.

220434947512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81056 (or 81052 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 220434947512 in words is "two hundred twenty billion, four hundred thirty-four million, nine hundred forty-seven thousand, five hundred twelve".