65555050069 has 2 divisors, whose sum is σ = 65555050070. Its totient is φ = 65555050068.

The previous prime is 65555050031. The next prime is 65555050081. The reversal of 65555050069 is 96005055556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64510920100 + 1044129969 = 253990^2 + 32313^2 .

It is a cyclic number.

It is not a de Polignac number, because 65555050069 - 2⁷ = 65555049941 is a prime.

It is a super-2 number, since 2×65555050069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65555050009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32777525034 + 32777525035.

It is an arithmetic number, because the mean of its divisors is an integer number (32777525035).

Almost surely, 2^65555050069 is an apocalyptic number.

It is an amenable number.

65555050069 is a deficient number, since it is larger than the sum of its proper divisors (1).

65555050069 is an equidigital number, since it uses as much as digits as its factorization.

65555050069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1012500, while the sum is 46.

The spelling of 65555050069 in words is "sixty-five billion, five hundred fifty-five million, fifty thousand, sixty-nine".