65505060606501 has 6 divisors (see below), whose sum is σ = 94618420876070. Its totient is φ = 43670040404328.

The previous prime is 65505060606449. The next prime is 65505060606539. The reversal of 65505060606501 is 10560606050556.

It can be written as a sum of positive squares in only one way, i.e., 50132772202500 + 15372288404001 = 7080450^2 + 3920751^2 .

It is not a de Polignac number, because 65505060606501 - 2¹³ = 65505060598309 is a prime.

It is a super-2 number, since 2×65505060606501² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65505060606581) 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, 3639170033686 + ... + 3639170033703.

Almost surely, 2^{65505060606501} is an apocalyptic number.

It is an amenable number.

65505060606501 is a deficient number, since it is larger than the sum of its proper divisors (29113360269569).

65505060606501 is a wasteful number, since it uses less digits than its factorization.

65505060606501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7278340067395 (or 7278340067392 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 65505060606501 in words is "sixty-five trillion, five hundred five billion, sixty million, six hundred six thousand, five hundred one".