566687949786665 has 16 divisors (see below), whose sum is σ = 777587423408640. Its totient is φ = 388378333717440.

The previous prime is 566687949786641. The next prime is 566687949786677.

566687949786665 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 566687949786665 - 2³⁴ = 566670769917481 is a prime.

It is a super-2 number, since 2×566687949786665² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4326787610 + ... + 4326918579.

It is an arithmetic number, because the mean of its divisors is an integer number (48599213963040).

Almost surely, 2^{566687949786665} is an apocalyptic number.

It is an amenable number.

566687949786665 is a deficient number, since it is larger than the sum of its proper divisors (210899473621975).

566687949786665 is a wasteful number, since it uses less digits than its factorization.

566687949786665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8653708072.

The product of its digits is 1185137049600, while the sum is 98.

The spelling of 566687949786665 in words is "five hundred sixty-six trillion, six hundred eighty-seven billion, nine hundred forty-nine million, seven hundred eighty-six thousand, six hundred sixty-five".