65000005505005 has 4 divisors (see below), whose sum is σ = 78000006606012. Its totient is φ = 52000004404000.

The previous prime is 65000005504997. The next prime is 65000005505011. The reversal of 65000005505005 is 50050550000056.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24934472994249 + 40065532510756 = 4993443^2 + 6329734^2 .

It is not a de Polignac number, because 65000005505005 - 2³ = 65000005504997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6500000550496 + ... + 6500000550505.

It is an arithmetic number, because the mean of its divisors is an integer number (19500001651503).

Almost surely, 2^{65000005505005} is an apocalyptic number.

It is an amenable number.

65000005505005 is a deficient number, since it is larger than the sum of its proper divisors (13000001101007).

65000005505005 is a wasteful number, since it uses less digits than its factorization.

65000005505005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13000001101006.

The product of its (nonzero) digits is 18750, while the sum is 31.

The spelling of 65000005505005 in words is "sixty-five trillion, five million, five hundred five thousand, five".