32221544545 has 4 divisors (see below), whose sum is σ = 38665853460. Its totient is φ = 25777235632.

The previous prime is 32221544543. The next prime is 32221544549. The reversal of 32221544545 is 54544512223.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20248151616 + 11973392929 = 142296^2 + 109423^2 .

It is a cyclic number.

It is not a de Polignac number, because 32221544545 - 2¹ = 32221544543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32221544543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3222154450 + ... + 3222154459.

It is an arithmetic number, because the mean of its divisors is an integer number (9666463365).

Almost surely, 2^32221544545 is an apocalyptic number.

It is an amenable number.

32221544545 is a deficient number, since it is larger than the sum of its proper divisors (6444308915).

32221544545 is an equidigital number, since it uses as much as digits as its factorization.

32221544545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6444308914.

The product of its digits is 192000, while the sum is 37.

The spelling of 32221544545 in words is "thirty-two billion, two hundred twenty-one million, five hundred forty-four thousand, five hundred forty-five".