168053652018 has 32 divisors (see below), whose sum is σ = 426802926720. Its totient is φ = 48015329040.

The previous prime is 168053651971. The next prime is 168053652059. The reversal of 168053652018 is 810256350861.

168053652018 is a `hidden beast` number, since 1 + 6 + 80 + 5 + 36 + 520 + 18 = 666.

168053652018 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222292813 + ... + 222293568.

It is an arithmetic number, because the mean of its divisors is an integer number (13337591460).

Almost surely, 2^168053652018 is an apocalyptic number.

168053652018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

168053652018 is an abundant number, since it is smaller than the sum of its proper divisors (258749274702).

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

168053652018 is a wasteful number, since it uses less digits than its factorization.

168053652018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444586399 (or 444586393 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 168053652018 in words is "one hundred sixty-eight billion, fifty-three million, six hundred fifty-two thousand, eighteen".