605550105561 has 8 divisors (see below), whose sum is σ = 809713609600. Its totient is φ = 402543335952.

The previous prime is 605550105541. The next prime is 605550105593. The reversal of 605550105561 is 165501055506.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 605550105561 - 2¹¹ = 605550103513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (605550105541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289182385 + ... + 289184478.

It is an arithmetic number, because the mean of its divisors is an integer number (101214201200).

Almost surely, 2^605550105561 is an apocalyptic number.

It is an amenable number.

605550105561 is a deficient number, since it is larger than the sum of its proper divisors (204163504039).

605550105561 is a wasteful number, since it uses less digits than its factorization.

605550105561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578367215.

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

The spelling of 605550105561 in words is "six hundred five billion, five hundred fifty million, one hundred five thousand, five hundred sixty-one".