5664740474665 has 4 divisors (see below), whose sum is σ = 6797688569604. Its totient is φ = 4531792379728.

The previous prime is 5664740474647. The next prime is 5664740474761.

It is a happy number.

5664740474665 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3219986202624 + 2444754272041 = 1794432^2 + 1563571^2 .

It is a cyclic number.

It is not a de Polignac number, because 5664740474665 - 2¹⁵ = 5664740441897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5664740474597 and 5664740474606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566474047462 + ... + 566474047471.

It is an arithmetic number, because the mean of its divisors is an integer number (1699422142401).

Almost surely, 2^{5664740474665} is an apocalyptic number.

It is an amenable number.

5664740474665 is a deficient number, since it is larger than the sum of its proper divisors (1132948094939).

5664740474665 is a wasteful number, since it uses less digits than its factorization.

5664740474665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132948094938.

The product of its (nonzero) digits is 406425600, while the sum is 64.

The spelling of 5664740474665 in words is "five trillion, six hundred sixty-four billion, seven hundred forty million, four hundred seventy-four thousand, six hundred sixty-five".