65555005005005 has 8 divisors (see below), whose sum is σ = 78666857105400. Its totient is φ = 52443436604416.

The previous prime is 65555005004857. The next prime is 65555005005019. The reversal of 65555005005005 is 50050050055556.

It can be written as a sum of positive squares in 4 ways, for example, as 8233192377316 + 57321812627689 = 2869354^2 + 7571117^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65555005005005 - 2¹² = 65555005000909 is a prime.

65555005005005 is a modest number, since divided by 5005005 gives 65555 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70416260 + ... + 71341149.

It is an arithmetic number, because the mean of its divisors is an integer number (9833357138175).

Almost surely, 2^{65555005005005} is an apocalyptic number.

It is an amenable number.

65555005005005 is a deficient number, since it is larger than the sum of its proper divisors (13111852100395).

65555005005005 is a wasteful number, since it uses less digits than its factorization.

65555005005005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141849903.

The product of its (nonzero) digits is 468750, while the sum is 41.

The spelling of 65555005005005 in words is "sixty-five trillion, five hundred fifty-five billion, five million, five thousand, five".