605844368661 has 192 divisors, whose sum is σ = 1079200972800. Its totient is φ = 299675376000.

The previous prime is 605844368641. The next prime is 605844368677. The reversal of 605844368661 is 166863448506.

It is not a de Polignac number, because 605844368661 - 2⁹ = 605844368149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605844368641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 157319386 + ... + 157323236.

It is an arithmetic number, because the mean of its divisors is an integer number (5620838400).

Almost surely, 2^605844368661 is an apocalyptic number.

It is an amenable number.

605844368661 is a deficient number, since it is larger than the sum of its proper divisors (473356604139).

605844368661 is a wasteful number, since it uses less digits than its factorization.

605844368661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020 (or 4013 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 57.

The spelling of 605844368661 in words is "six hundred five billion, eight hundred forty-four million, three hundred sixty-eight thousand, six hundred sixty-one".