168128046 has 12 divisors (see below), whose sum is σ = 364277472. Its totient is φ = 56042676.

The previous prime is 168128041. The next prime is 168128047. The reversal of 168128046 is 640821861.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 168128046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168128041) 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 5 ways as a sum of consecutive naturals, for example, 4670206 + ... + 4670241.

It is an arithmetic number, because the mean of its divisors is an integer number (30356456).

Almost surely, 2^168128046 is an apocalyptic number.

168128046 is an abundant number, since it is smaller than the sum of its proper divisors (196149426).

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

168128046 is a wasteful number, since it uses less digits than its factorization.

168128046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9340455 (or 9340452 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 168128046 is about 12966.4199376698. The cubic root of 168128046 is about 551.9249858682.

The spelling of 168128046 in words is "one hundred sixty-eight million, one hundred twenty-eight thousand, forty-six".