5516550215669 has 2 divisors, whose sum is σ = 5516550215670. Its totient is φ = 5516550215668.

The previous prime is 5516550215651. The next prime is 5516550215707. The reversal of 5516550215669 is 9665120556155.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3886268135044 + 1630282080625 = 1971362^2 + 1276825^2 .

It is a cyclic number.

It is not a de Polignac number, because 5516550215669 - 2²⁰ = 5516549167093 is a prime.

It is a super-2 number, since 2×5516550215669² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5516550215609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2758275107834 + 2758275107835.

It is an arithmetic number, because the mean of its divisors is an integer number (2758275107835).

Almost surely, 2^{5516550215669} is an apocalyptic number.

It is an amenable number.

5516550215669 is a deficient number, since it is larger than the sum of its proper divisors (1).

5516550215669 is an equidigital number, since it uses as much as digits as its factorization.

5516550215669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12150000, while the sum is 56.

The spelling of 5516550215669 in words is "five trillion, five hundred sixteen billion, five hundred fifty million, two hundred fifteen thousand, six hundred sixty-nine".