108916666 has 4 divisors (see below), whose sum is σ = 163375002. Its totient is φ = 54458332.

The previous prime is 108916649. The next prime is 108916673. The reversal of 108916666 is 666619801.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 77880625 + 31036041 = 8825^2 + 5571^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27229165 + ... + 27229168.

Almost surely, 2^108916666 is an apocalyptic number.

108916666 is a deficient number, since it is larger than the sum of its proper divisors (54458336).

108916666 is an equidigital number, since it uses as much as digits as its factorization.

108916666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54458335.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 108916666 is about 10436.3147710291. The cubic root of 108916666 is about 477.5638517356.

The spelling of 108916666 in words is "one hundred eight million, nine hundred sixteen thousand, six hundred sixty-six".