108543666 has 64 divisors (see below), whose sum is σ = 273401856. Its totient is φ = 27907200.

The previous prime is 108543661. The next prime is 108543667. The reversal of 108543666 is 666345801.

It is not an unprimeable number, because it can be changed into a prime (108543661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46446 + ... + 48726.

It is an arithmetic number, because the mean of its divisors is an integer number (4271904).

Almost surely, 2^108543666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108543666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136700928).

108543666 is an abundant number, since it is smaller than the sum of its proper divisors (164858190).

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

108543666 is a wasteful number, since it uses less digits than its factorization.

108543666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 108543666 is about 10418.4291522283. The cubic root of 108543666 is about 477.0180673421.

The spelling of 108543666 in words is "one hundred eight million, five hundred forty-three thousand, six hundred sixty-six".