64855388149033 has 2 divisors, whose sum is σ = 64855388149034. Its totient is φ = 64855388149032.

The previous prime is 64855388149001. The next prime is 64855388149091. The reversal of 64855388149033 is 33094188355846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64109534826649 + 745853322384 = 8006843^2 + 863628^2 .

It is a cyclic number.

It is not a de Polignac number, because 64855388149033 - 2⁵ = 64855388149001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64855388149033.

It is not a weakly prime, because it can be changed into another prime (64855388144033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32427694074516 + 32427694074517.

It is an arithmetic number, because the mean of its divisors is an integer number (32427694074517).

Almost surely, 2^{64855388149033} is an apocalyptic number.

It is an amenable number.

64855388149033 is a deficient number, since it is larger than the sum of its proper divisors (1).

64855388149033 is an equidigital number, since it uses as much as digits as its factorization.

64855388149033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 298598400, while the sum is 67.

The spelling of 64855388149033 in words is "sixty-four trillion, eight hundred fifty-five billion, three hundred eighty-eight million, one hundred forty-nine thousand, thirty-three".