168505488 has 80 divisors (see below), whose sum is σ = 486843840. Its totient is φ = 55800576.

The previous prime is 168505483. The next prime is 168505489. The reversal of 168505488 is 884505861.

168505488 is a `hidden beast` number, since 1 + 68 + 505 + 4 + 88 = 666.

It is a super-2 number, since 2×168505488² = 56788198972236288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (168505483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69220 + ... + 71612.

It is an arithmetic number, because the mean of its divisors is an integer number (6085548).

Almost surely, 2^168505488 is an apocalyptic number.

168505488 is a gapful number since it is divisible by the number (18) 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 168505488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243421920).

168505488 is an abundant number, since it is smaller than the sum of its proper divisors (318338352).

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

168505488 is a wasteful number, since it uses less digits than its factorization.

168505488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573 (or 2561 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The square root of 168505488 is about 12980.9663738876. The cubic root of 168505488 is about 552.3376950687.

The spelling of 168505488 in words is "one hundred sixty-eight million, five hundred five thousand, four hundred eighty-eight".