168536052 has 84 divisors (see below), whose sum is σ = 457682820. Its totient is φ = 54214272.

The previous prime is 168536047. The next prime is 168536077. The reversal of 168536052 is 250635861.

It can be written as a sum of positive squares in 2 ways, for example, as 106378596 + 62157456 = 10314^2 + 7884^2 .

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 = 168535998 and 168536016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 83568 + ... + 85560.

It is an arithmetic number, because the mean of its divisors is an integer number (5448605).

Almost surely, 2^168536052 is an apocalyptic number.

168536052 is a gapful number since it is divisible by the number (12) 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 168536052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228841410).

168536052 is an abundant number, since it is smaller than the sum of its proper divisors (289146768).

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

168536052 is a wasteful number, since it uses less digits than its factorization.

168536052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044 (or 2027 counting only the distinct ones).

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

The square root of 168536052 is about 12982.1435826292. The cubic root of 168536052 is about 552.3710879054.

The spelling of 168536052 in words is "one hundred sixty-eight million, five hundred thirty-six thousand, fifty-two".