32640162641 has 2 divisors, whose sum is σ = 32640162642. Its totient is φ = 32640162640.

The previous prime is 32640162637. The next prime is 32640162703. The reversal of 32640162641 is 14626104623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28113564241 + 4526598400 = 167671^2 + 67280^2 .

It is a cyclic number.

It is not a de Polignac number, because 32640162641 - 2² = 32640162637 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (32640162631) by changing a digit.

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 as a sum of consecutive naturals, namely, 16320081320 + 16320081321.

It is an arithmetic number, because the mean of its divisors is an integer number (16320081321).

Almost surely, 2^32640162641 is an apocalyptic number.

It is an amenable number.

32640162641 is a deficient number, since it is larger than the sum of its proper divisors (1).

32640162641 is an equidigital number, since it uses as much as digits as its factorization.

32640162641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 32640162641 in words is "thirty-two billion, six hundred forty million, one hundred sixty-two thousand, six hundred forty-one".