32243162561 has 2 divisors, whose sum is σ = 32243162562. Its totient is φ = 32243162560.

The previous prime is 32243162503. The next prime is 32243162563. The reversal of 32243162561 is 16526134223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31815500161 + 427662400 = 178369^2 + 20680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32243162561 is a prime.

Together with 32243162563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (32243162563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16121581280 + 16121581281.

It is an arithmetic number, because the mean of its divisors is an integer number (16121581281).

Almost surely, 2^32243162561 is an apocalyptic number.

It is an amenable number.

32243162561 is a deficient number, since it is larger than the sum of its proper divisors (1).

32243162561 is an equidigital number, since it uses as much as digits as its factorization.

32243162561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 35.

Adding to 32243162561 its reverse (16526134223), we get a palindrome (48769296784).

The spelling of 32243162561 in words is "thirty-two billion, two hundred forty-three million, one hundred sixty-two thousand, five hundred sixty-one".