32564521472 has 80 divisors (see below), whose sum is σ = 75408423552. Its totient is φ = 13759549440.

The previous prime is 32564521463. The next prime is 32564521501. The reversal of 32564521472 is 27412546523.

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 7 ways as a sum of consecutive naturals, for example, 190478 + ... + 318450.

Almost surely, 2^32564521472 is an apocalyptic number.

32564521472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32564521472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37704211776).

32564521472 is an abundant number, since it is smaller than the sum of its proper divisors (42843902080).

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

32564521472 is an equidigital number, since it uses as much as digits as its factorization.

32564521472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128069 (or 128053 counting only the distinct ones).

The product of its digits is 403200, while the sum is 41.

The spelling of 32564521472 in words is "thirty-two billion, five hundred sixty-four million, five hundred twenty-one thousand, four hundred seventy-two".