168530544 has 200 divisors, whose sum is σ = 600760160. Its totient is φ = 44416512.

The previous prime is 168530533. The next prime is 168530561. The reversal of 168530544 is 445035861.

It is a happy number.

168530544 is a `hidden beast` number, since 1 + 6 + 85 + 30 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 168530499 and 168530508.

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 117222 + ... + 118650.

Almost surely, 2^168530544 is an apocalyptic number.

168530544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168530544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300380080).

168530544 is an abundant number, since it is smaller than the sum of its proper divisors (432229616).

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

168530544 is a wasteful number, since it uses less digits than its factorization.

168530544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469 (or 1454 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 168530544 is about 12981.9314433562. The cubic root of 168530544 is about 552.3650704133.

The spelling of 168530544 in words is "one hundred sixty-eight million, five hundred thirty thousand, five hundred forty-four".