5518836667217 has 8 divisors (see below), whose sum is σ = 5551945627200. Its totient is φ = 5485728446064.

The previous prime is 5518836667171. The next prime is 5518836667247. The reversal of 5518836667217 is 7127666388155.

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 5518836667217 - 2¹⁸ = 5518836405073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5518836667247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25340534 + ... + 25557392.

It is an arithmetic number, because the mean of its divisors is an integer number (693993203400).

Almost surely, 2^{5518836667217} is an apocalyptic number.

It is an amenable number.

5518836667217 is a deficient number, since it is larger than the sum of its proper divisors (33108959983).

5518836667217 is a wasteful number, since it uses less digits than its factorization.

5518836667217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369415.

The product of its digits is 101606400, while the sum is 65.

The spelling of 5518836667217 in words is "five trillion, five hundred eighteen billion, eight hundred thirty-six million, six hundred sixty-seven thousand, two hundred seventeen".