5666580856665 has 192 divisors, whose sum is σ = 10533317034240. Its totient is φ = 2812957378560.

The previous prime is 5666580856597. The next prime is 5666580856693.

5666580856665 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5666580856665 - 2¹⁷ = 5666580725593 is a prime.

It is a super-2 number, since 2×5666580856665² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5666580856593 and 5666580856602.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1759259755 + ... + 1759262975.

It is an arithmetic number, because the mean of its divisors is an integer number (54861026220).

Almost surely, 2^{5666580856665} is an apocalyptic number.

It is an amenable number.

5666580856665 is a deficient number, since it is larger than the sum of its proper divisors (4866736177575).

5666580856665 is a wasteful number, since it uses less digits than its factorization.

5666580856665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3704 (or 3701 counting only the distinct ones).

The product of its (nonzero) digits is 1866240000, while the sum is 72.

The spelling of 5666580856665 in words is "five trillion, six hundred sixty-six billion, five hundred eighty million, eight hundred fifty-six thousand, six hundred sixty-five".