32220506565128 has 36 divisors (see below), whose sum is σ = 70277115313485. Its totient is φ = 13808740362816.

The previous prime is 32220506565097. The next prime is 32220506565161. The reversal of 32220506565128 is 82156560502223.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 31909144797124 + 311361768004 = 5648818^2 + 557998^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=4013758.

It is a super-2 number, since 2×32220506565128² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 112241876 + ... + 112528572.

Almost surely, 2^{32220506565128} is an apocalyptic number.

It is an amenable number.

32220506565128 is an abundant number, since it is smaller than the sum of its proper divisors (38056608748357).

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

32220506565128 is an frugal number, since it uses more digits than its factorization.

32220506565128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573414 (or 286706 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 32220506565128 in words is "thirty-two trillion, two hundred twenty billion, five hundred six million, five hundred sixty-five thousand, one hundred twenty-eight".