64326505603 has 2 divisors, whose sum is σ = 64326505604. Its totient is φ = 64326505602.

The previous prime is 64326505597. The next prime is 64326505651. The reversal of 64326505603 is 30650562346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64326505603 - 2⁵ = 64326505571 is a prime.

It is not a weakly prime, because it can be changed into another prime (64326505693) 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, 32163252801 + 32163252802.

It is an arithmetic number, because the mean of its divisors is an integer number (32163252802).

Almost surely, 2^64326505603 is an apocalyptic number.

64326505603 is a deficient number, since it is larger than the sum of its proper divisors (1).

64326505603 is an equidigital number, since it uses as much as digits as its factorization.

64326505603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 40.

The spelling of 64326505603 in words is "sixty-four billion, three hundred twenty-six million, five hundred five thousand, six hundred three".