65555050663 has 2 divisors, whose sum is σ = 65555050664. Its totient is φ = 65555050662.

The previous prime is 65555050619. The next prime is 65555050721. The reversal of 65555050663 is 36605055556.

65555050663 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 is a cyclic number.

It is not a de Polignac number, because 65555050663 - 2¹³ = 65555042471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65555050763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32777525331 + 32777525332.

It is an arithmetic number, because the mean of its divisors is an integer number (32777525332).

Almost surely, 2^65555050663 is an apocalyptic number.

65555050663 is a deficient number, since it is larger than the sum of its proper divisors (1).

65555050663 is an equidigital number, since it uses as much as digits as its factorization.

65555050663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2025000, while the sum is 46.

The spelling of 65555050663 in words is "sixty-five billion, five hundred fifty-five million, fifty thousand, six hundred sixty-three".