168671880 has 192 divisors, whose sum is σ = 616412160. Its totient is φ = 39688704.

The previous prime is 168671869. The next prime is 168671887. The reversal of 168671880 is 88176861.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (168671887) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 106857 + ... + 108423.

It is an arithmetic number, because the mean of its divisors is an integer number (3210480).

Almost surely, 2^168671880 is an apocalyptic number.

168671880 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 168671880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308206080).

168671880 is an abundant number, since it is smaller than the sum of its proper divisors (447740280).

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

168671880 is a wasteful number, since it uses less digits than its factorization.

168671880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620 (or 1613 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 168671880 is about 12987.3738684924. The cubic root of 168671880 is about 552.5194385850.

The spelling of 168671880 in words is "one hundred sixty-eight million, six hundred seventy-one thousand, eight hundred eighty".