8666862268667 has 4 divisors (see below), whose sum is σ = 8666904379416. Its totient is φ = 8666820157920.

The previous prime is 8666862268657. The next prime is 8666862268711. The reversal of 8666862268667 is 7668622686668.

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

It is a cyclic number.

It is not a de Polignac number, because 8666862268667 - 2²² = 8666858074363 is a prime.

It is a super-2 number, since 2×8666862268667² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8666862268607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20745134 + ... + 21158787.

It is an arithmetic number, because the mean of its divisors is an integer number (2166726094854).

Almost surely, 2^{8666862268667} is an apocalyptic number.

8666862268667 is a deficient number, since it is larger than the sum of its proper divisors (42110749).

8666862268667 is a wasteful number, since it uses less digits than its factorization.

8666862268667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42110748.

The product of its digits is 4013162496, while the sum is 77.

The spelling of 8666862268667 in words is "eight trillion, six hundred sixty-six billion, eight hundred sixty-two million, two hundred sixty-eight thousand, six hundred sixty-seven".