108117666 has 40 divisors (see below), whose sum is σ = 243488784. Its totient is φ = 35857080.

The previous prime is 108117649. The next prime is 108117673. The reversal of 108117666 is 666711801.

It is a self number, because there is not a number n which added to its sum of digits gives 108117666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32601 + ... + 35763.

Almost surely, 2^108117666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108117666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121744392).

108117666 is an abundant number, since it is smaller than the sum of its proper divisors (135371118).

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

108117666 is a wasteful number, since it uses less digits than its factorization.

108117666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3388 (or 3379 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 108117666 is about 10397.9645123457. The cubic root of 108117666 is about 476.3932001644.

The spelling of 108117666 in words is "one hundred eight million, one hundred seventeen thousand, six hundred sixty-six".