56605450665 has 16 divisors (see below), whose sum is σ = 93016525248. Its totient is φ = 29373638976.

The previous prime is 56605450651. The next prime is 56605450669.

56605450665 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56605450665 - 2²⁸ = 56337015209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56605450669) 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 15 ways as a sum of consecutive naturals, for example, 50995347 + ... + 50996456.

It is an arithmetic number, because the mean of its divisors is an integer number (5813532828).

Almost surely, 2^56605450665 is an apocalyptic number.

It is an amenable number.

56605450665 is a deficient number, since it is larger than the sum of its proper divisors (36411074583).

56605450665 is a wasteful number, since it uses less digits than its factorization.

56605450665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101991848.

The product of its (nonzero) digits is 3240000, while the sum is 48.

The spelling of 56605450665 in words is "fifty-six billion, six hundred five million, four hundred fifty thousand, six hundred sixty-five".