168368520 has 32 divisors (see below), whose sum is σ = 505105920. Its totient is φ = 44898240.

The previous prime is 168368507. The next prime is 168368539. The reversal of 168368520 is 25863861.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701416 + ... + 701655.

It is an arithmetic number, because the mean of its divisors is an integer number (15784560).

Almost surely, 2^168368520 is an apocalyptic number.

168368520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168368520 is an abundant number, since it is smaller than the sum of its proper divisors (336737400).

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

168368520 is a wasteful number, since it uses less digits than its factorization.

168368520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403085 (or 1403081 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 168368520 is about 12975.6895770514. The cubic root of 168368520 is about 552.1880004457.

The spelling of 168368520 in words is "one hundred sixty-eight million, three hundred sixty-eight thousand, five hundred twenty".