168368220558 has 48 divisors (see below), whose sum is σ = 386349575040. Its totient is φ = 52808675328.

The previous prime is 168368220557. The next prime is 168368220563. The reversal of 168368220558 is 855022863861.

168368220558 is a `hidden beast` number, since 1 + 6 + 8 + 3 + 6 + 82 + 2 + 0 + 558 = 666.

168368220558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×168368220558³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168368220557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1248291 + ... + 1376577.

It is an arithmetic number, because the mean of its divisors is an integer number (8048949480).

Almost surely, 2^168368220558 is an apocalyptic number.

168368220558 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

168368220558 is an abundant number, since it is smaller than the sum of its proper divisors (217981354482).

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

168368220558 is a wasteful number, since it uses less digits than its factorization.

168368220558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132601 (or 132598 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 168368220558 in words is "one hundred sixty-eight billion, three hundred sixty-eight million, two hundred twenty thousand, five hundred fifty-eight".