106686656 has 28 divisors (see below), whose sum is σ = 214396320. Its totient is φ = 52665600.

The previous prime is 106686647. The next prime is 106686677. The reversal of 106686656 is 656686601.

It is a super-2 number, since 2×106686656² = 22764085136924672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5495 + ... + 15606.

Almost surely, 2^106686656 is an apocalyptic number.

106686656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

106686656 is an abundant number, since it is smaller than the sum of its proper divisors (107709664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

106686656 is an equidigital number, since it uses as much as digits as its factorization.

106686656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21192 (or 21182 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 106686656 is about 10328.9232739913. The cubic root of 106686656 is about 474.2820637174.

Subtracting 106686656 from its reverse (656686601), we obtain a palindrome (549999945).

The spelling of 106686656 in words is "one hundred six million, six hundred eighty-six thousand, six hundred fifty-six".