168352506 has 80 divisors (see below), whose sum is σ = 445125120. Its totient is φ = 46539360.

The previous prime is 168352501. The next prime is 168352523. The reversal of 168352506 is 605253861.

168352506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (168352501) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 32760 + ... + 37548.

It is an arithmetic number, because the mean of its divisors is an integer number (5564064).

Almost surely, 2^168352506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168352506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222562560).

168352506 is an abundant number, since it is smaller than the sum of its proper divisors (276772614).

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

168352506 is a wasteful number, since it uses less digits than its factorization.

168352506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4841 (or 4832 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 168352506 is about 12975.0724853467. The cubic root of 168352506 is about 552.1704931765.

The spelling of 168352506 in words is "one hundred sixty-eight million, three hundred fifty-two thousand, five hundred six".