168545268 has 36 divisors (see below), whose sum is σ = 426446020. Its totient is φ = 56128896.

The previous prime is 168545261. The next prime is 168545281. The reversal of 168545268 is 862545861.

It can be written as a sum of positive squares in 2 ways, for example, as 162103824 + 6441444 = 12732^2 + 2538^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168545261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63096 + ... + 65712.

Almost surely, 2^168545268 is an apocalyptic number.

168545268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

168545268 is an abundant number, since it is smaller than the sum of its proper divisors (257900752).

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

168545268 is a wasteful number, since it uses less digits than its factorization.

168545268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416 (or 4411 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 168545268 is about 12982.4985268630. The cubic root of 168545268 is about 552.3811560957.

It can be divided in two parts, 16854 and 5268, that added together give a palindrome (22122).

The spelling of 168545268 in words is "one hundred sixty-eight million, five hundred forty-five thousand, two hundred sixty-eight".