109665994 has 8 divisors (see below), whose sum is σ = 170171460. Its totient is φ = 52942176.

The previous prime is 109665977. The next prime is 109666009. The reversal of 109665994 is 499566901.

It can be written as a sum of positive squares in 2 ways, for example, as 109516225 + 149769 = 10465^2 + 387^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 945339 + ... + 945454.

Almost surely, 2^109665994 is an apocalyptic number.

109665994 is a deficient number, since it is larger than the sum of its proper divisors (60505466).

109665994 is a wasteful number, since it uses less digits than its factorization.

109665994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890824.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 109665994 is about 10472.1532647302. The cubic root of 109665994 is about 478.6565355520.

The spelling of 109665994 in words is "one hundred nine million, six hundred sixty-five thousand, nine hundred ninety-four".