5516955516865 has 16 divisors (see below), whose sum is σ = 7504846372800. Its totient is φ = 3859635275712.

The previous prime is 5516955516851. The next prime is 5516955516871. The reversal of 5516955516865 is 5686155596155.

It is a cyclic number.

It is not a de Polignac number, because 5516955516865 - 2⁵ = 5516955516833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5516955516865.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2233583995 + ... + 2233586464.

It is an arithmetic number, because the mean of its divisors is an integer number (469052898300).

Almost surely, 2^{5516955516865} is an apocalyptic number.

It is an amenable number.

5516955516865 is a deficient number, since it is larger than the sum of its proper divisors (1987890855935).

5516955516865 is a wasteful number, since it uses less digits than its factorization.

5516955516865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4467170496.

The product of its digits is 243000000, while the sum is 67.

The spelling of 5516955516865 in words is "five trillion, five hundred sixteen billion, nine hundred fifty-five million, five hundred sixteen thousand, eight hundred sixty-five".