168109807 has 8 divisors (see below), whose sum is σ = 173998080. Its totient is φ = 162250680.

The previous prime is 168109801. The next prime is 168109813. The reversal of 168109807 is 708901861.

168109807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (168109801) and next prime (168109813).

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

It is a cyclic number.

It is not a de Polignac number, because 168109807 - 2⁷ = 168109679 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168109807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168109801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4794 + ... + 18952.

It is an arithmetic number, because the mean of its divisors is an integer number (21749760).

Almost surely, 2^168109807 is an apocalyptic number.

168109807 is a deficient number, since it is larger than the sum of its proper divisors (5888273).

168109807 is a wasteful number, since it uses less digits than its factorization.

168109807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14573.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 168109807 is about 12965.7166018697. The cubic root of 168109807 is about 551.9050270251.

The spelling of 168109807 in words is "one hundred sixty-eight million, one hundred nine thousand, eight hundred seven".