5510416661 has 2 divisors, whose sum is σ = 5510416662. Its totient is φ = 5510416660.

The previous prime is 5510416621. The next prime is 5510416663. The reversal of 5510416661 is 1666140155.

5510416661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5510092900 + 323761 = 74230^2 + 569^2 .

It is a cyclic number.

It is not a de Polignac number, because 5510416661 - 2¹⁰ = 5510415637 is a prime.

Together with 5510416663, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5510416663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2755208330 + 2755208331.

It is an arithmetic number, because the mean of its divisors is an integer number (2755208331).

Almost surely, 2^5510416661 is an apocalyptic number.

It is an amenable number.

5510416661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5510416661 is an equidigital number, since it uses as much as digits as its factorization.

5510416661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 5510416661 is about 74232.1807641403. The cubic root of 5510416661 is about 1766.2878419067.

The spelling of 5510416661 in words is "five billion, five hundred ten million, four hundred sixteen thousand, six hundred sixty-one".