168487680 has 288 divisors, whose sum is σ = 596030400. Its totient is φ = 40370176.

The previous prime is 168487667. The next prime is 168487691. The reversal of 168487680 is 86784861.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1893076 + ... + 1893164.

It is an arithmetic number, because the mean of its divisors is an integer number (2069550).

Almost surely, 2^168487680 is an apocalyptic number.

168487680 is a gapful number since it is divisible by the number (10) 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 168487680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298015200).

168487680 is an abundant number, since it is smaller than the sum of its proper divisors (427542720).

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

168487680 is a wasteful number, since it uses less digits than its factorization.

168487680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 168487680 is about 12980.2804284037. The cubic root of 168487680 is about 552.3182369958.

The spelling of 168487680 in words is "one hundred sixty-eight million, four hundred eighty-seven thousand, six hundred eighty".