64605636620141 has 2 divisors, whose sum is σ = 64605636620142. Its totient is φ = 64605636620140.

The previous prime is 64605636620093. The next prime is 64605636620227. The reversal of 64605636620141 is 14102663650646.

64605636620141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62151858486025 + 2453778134116 = 7883645^2 + 1566454^2 .

It is a cyclic number.

It is not a de Polignac number, because 64605636620141 - 2¹⁴ = 64605636603757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64605636620141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64605636622141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32302818310070 + 32302818310071.

It is an arithmetic number, because the mean of its divisors is an integer number (32302818310071).

Almost surely, 2^{64605636620141} is an apocalyptic number.

It is an amenable number.

64605636620141 is a deficient number, since it is larger than the sum of its proper divisors (1).

64605636620141 is an equidigital number, since it uses as much as digits as its factorization.

64605636620141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3732480, while the sum is 50.

The spelling of 64605636620141 in words is "sixty-four trillion, six hundred five billion, six hundred thirty-six million, six hundred twenty thousand, one hundred forty-one".