5516550215657 has 32 divisors (see below), whose sum is σ = 6078752914080. Its totient is φ = 4975261470720.

The previous prime is 5516550215651. The next prime is 5516550215669. The reversal of 5516550215657 is 7565120556155.

It can be written as a sum of positive squares in 16 ways, for example, as 4117181879056 + 1399368336601 = 2029084^2 + 1182949^2 .

It is a cyclic number.

It is not a de Polignac number, because 5516550215657 - 2²⁸ = 5516281780201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5516550215599 and 5516550215608.

It is not an unprimeable number, because it can be changed into a prime (5516550215651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78596423 + ... + 78666579.

It is an arithmetic number, because the mean of its divisors is an integer number (189961028565).

Almost surely, 2^{5516550215657} is an apocalyptic number.

It is an amenable number.

5516550215657 is a deficient number, since it is larger than the sum of its proper divisors (562202698423).

5516550215657 is a wasteful number, since it uses less digits than its factorization.

5516550215657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70893.

The product of its (nonzero) digits is 7875000, while the sum is 53.

The spelling of 5516550215657 in words is "five trillion, five hundred sixteen billion, five hundred fifty million, two hundred fifteen thousand, six hundred fifty-seven".