5616155611665 has 20 divisors (see below), whose sum is σ = 10067478949044. Its totient is φ = 2995282992672.

The previous prime is 5616155611637. The next prime is 5616155611679. The reversal of 5616155611665 is 5661165516165.

5616155611665 is a `hidden beast` number, since 5 + 6 + 1 + 6 + 1 + 5 + 561 + 16 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4480575527169 + 1135580084496 = 2116737^2 + 1065636^2 .

It is not a de Polignac number, because 5616155611665 - 2¹³ = 5616155603473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6933525042 + ... + 6933525851.

Almost surely, 2^{5616155611665} is an apocalyptic number.

It is an amenable number.

5616155611665 is a deficient number, since it is larger than the sum of its proper divisors (4451323337379).

5616155611665 is a wasteful number, since it uses less digits than its factorization.

5616155611665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13867050910 (or 13867050901 counting only the distinct ones).

The product of its digits is 4860000, while the sum is 54.

The spelling of 5616155611665 in words is "five trillion, six hundred sixteen billion, one hundred fifty-five million, six hundred eleven thousand, six hundred sixty-five".