168604845 has 8 divisors (see below), whose sum is σ = 269767776. Its totient is φ = 89922576.

The previous prime is 168604837. The next prime is 168604847. The reversal of 168604845 is 548406861.

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

It is not a de Polignac number, because 168604845 - 2³ = 168604837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168604797 and 168604806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168604847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5620147 + ... + 5620176.

It is an arithmetic number, because the mean of its divisors is an integer number (33720972).

Almost surely, 2^168604845 is an apocalyptic number.

168604845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

168604845 is a deficient number, since it is larger than the sum of its proper divisors (101162931).

168604845 is a wasteful number, since it uses less digits than its factorization.

168604845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11240331.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 168604845 is about 12984.7928362373. The cubic root of 168604845 is about 552.4462332423.

The spelling of 168604845 in words is "one hundred sixty-eight million, six hundred four thousand, eight hundred forty-five".