106805666 has 16 divisors (see below), whose sum is σ = 180800640. Its totient is φ = 46873680.

The previous prime is 106805663. The next prime is 106805681. The reversal of 106805666 is 666508601.

It is a super-2 number, since 2×106805666² = 22814900579407112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106805663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83066 + ... + 84341.

It is an arithmetic number, because the mean of its divisors is an integer number (11300040).

Almost surely, 2^106805666 is an apocalyptic number.

106805666 is a deficient number, since it is larger than the sum of its proper divisors (73994974).

106805666 is a wasteful number, since it uses less digits than its factorization.

106805666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167449.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 106805666 is about 10334.6826753413. The cubic root of 106805666 is about 474.4583535974.

The spelling of 106805666 in words is "one hundred six million, eight hundred five thousand, six hundred sixty-six".