65066312133 has 6 divisors (see below), whose sum is σ = 93984673094. Its totient is φ = 43377541416.

The previous prime is 65066312081. The next prime is 65066312141. The reversal of 65066312133 is 33121366056.

65066312133 is a `hidden beast` number, since 6 + 5 + 0 + 6 + 631 + 2 + 13 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 59642431524 + 5423880609 = 244218^2 + 73647^2 .

It is not a de Polignac number, because 65066312133 - 2¹⁰ = 65066311109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65066312833) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3614795110 + ... + 3614795127.

Almost surely, 2^65066312133 is an apocalyptic number.

It is an amenable number.

65066312133 is a deficient number, since it is larger than the sum of its proper divisors (28918360961).

65066312133 is a wasteful number, since it uses less digits than its factorization.

65066312133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7229590243 (or 7229590240 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

Adding to 65066312133 its reverse (33121366056), we get a palindrome (98187678189).

The spelling of 65066312133 in words is "sixty-five billion, sixty-six million, three hundred twelve thousand, one hundred thirty-three".