108206665 has 16 divisors (see below), whose sum is σ = 148583808. Its totient is φ = 74105856.

The previous prime is 108206663. The next prime is 108206677. The reversal of 108206665 is 566602801.

It is a cyclic number.

It is not a de Polignac number, because 108206665 - 2¹ = 108206663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108206665.

It is not an unprimeable number, because it can be changed into a prime (108206663) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 37929 + ... + 40681.

It is an arithmetic number, because the mean of its divisors is an integer number (9286488).

Almost surely, 2^108206665 is an apocalyptic number.

It is an amenable number.

108206665 is a deficient number, since it is larger than the sum of its proper divisors (40377143).

108206665 is a wasteful number, since it uses less digits than its factorization.

108206665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3888.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 108206665 is about 10402.2432676803. The cubic root of 108206665 is about 476.5238815217.

The spelling of 108206665 in words is "one hundred eight million, two hundred six thousand, six hundred sixty-five".