65505555005505 has 16 divisors (see below), whose sum is σ = 109365796183680. Its totient is φ = 33417326611328.

The previous prime is 65505555005491. The next prime is 65505555005507. The reversal of 65505555005505 is 50550055550556.

It is a cyclic number.

It is not a de Polignac number, because 65505555005505 - 2⁶ = 65505555005441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65505555005507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94935586620 + ... + 94935587309.

It is an arithmetic number, because the mean of its divisors is an integer number (6835362261480).

Almost surely, 2^{65505555005505} is an apocalyptic number.

It is an amenable number.

65505555005505 is a deficient number, since it is larger than the sum of its proper divisors (43860241178175).

65505555005505 is a wasteful number, since it uses less digits than its factorization.

65505555005505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189871173960.

The product of its (nonzero) digits is 11718750, while the sum is 51.

The spelling of 65505555005505 in words is "sixty-five trillion, five hundred five billion, five hundred fifty-five million, five thousand, five hundred five".