109489666 has 32 divisors (see below), whose sum is σ = 203112000. Its totient is φ = 43519680.

The previous prime is 109489651. The next prime is 109489687. The reversal of 109489666 is 666984901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4641 + ... + 15508.

It is an arithmetic number, because the mean of its divisors is an integer number (6347250).

Almost surely, 2^109489666 is an apocalyptic number.

109489666 is a deficient number, since it is larger than the sum of its proper divisors (93622334).

109489666 is a wasteful number, since it uses less digits than its factorization.

109489666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20194.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 109489666 is about 10463.7309789577. The cubic root of 109489666 is about 478.3998597377.

The spelling of 109489666 in words is "one hundred nine million, four hundred eighty-nine thousand, six hundred sixty-six".