168500004 has 24 divisors (see below), whose sum is σ = 405850368. Its totient is φ = 54354720.

The previous prime is 168499993. The next prime is 168500021. The reversal of 168500004 is 400005861.

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 7 ways as a sum of consecutive naturals, for example, 226107 + ... + 226850.

It is an arithmetic number, because the mean of its divisors is an integer number (16910432).

Almost surely, 2^168500004 is an apocalyptic number.

It is an amenable number.

168500004 is an abundant number, since it is smaller than the sum of its proper divisors (237350364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168500004 is a wasteful number, since it uses less digits than its factorization.

168500004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452995 (or 452993 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 168500004 is about 12980.7551398214. The cubic root of 168500004 is about 552.3317030724.

Adding to 168500004 its reverse (400005861), we get a palindrome (568505865).

The spelling of 168500004 in words is "one hundred sixty-eight million, five hundred thousand, four".