662686686266 has 8 divisors (see below), whose sum is σ = 1084396395744. Its totient is φ = 301221221020.

The previous prime is 662686686257. The next prime is 662686686287.

662686686266 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 662686686196 and 662686686205.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15061061030 + ... + 15061061073.

It is an arithmetic number, because the mean of its divisors is an integer number (135549549468).

Almost surely, 2^662686686266 is an apocalyptic number.

662686686266 is a deficient number, since it is larger than the sum of its proper divisors (421709709478).

662686686266 is a wasteful number, since it uses less digits than its factorization.

662686686266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30122122116.

The product of its digits is 429981696, while the sum is 68.

The spelling of 662686686266 in words is "six hundred sixty-two billion, six hundred eighty-six million, six hundred eighty-six thousand, two hundred sixty-six".