550105065561 has 16 divisors (see below), whose sum is σ = 754135619328. Its totient is φ = 356471625600.

The previous prime is 550105065541. The next prime is 550105065563. The reversal of 550105065561 is 165560501055.

It is not a de Polignac number, because 550105065561 - 2³⁵ = 515745327193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (550105065563) 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 in 15 ways as a sum of consecutive naturals, for example, 8218326 + ... + 8284991.

It is an arithmetic number, because the mean of its divisors is an integer number (47133476208).

Almost surely, 2^550105065561 is an apocalyptic number.

It is an amenable number.

550105065561 is a deficient number, since it is larger than the sum of its proper divisors (204030553767).

550105065561 is a wasteful number, since it uses less digits than its factorization.

550105065561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16503632.

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 550105065561 in words is "five hundred fifty billion, one hundred five million, sixty-five thousand, five hundred sixty-one".