129168960 has 112 divisors (see below), whose sum is σ = 412796736. Its totient is φ = 34220032.

The previous prime is 129168899. The next prime is 129168979. The reversal of 129168960 is 69861921.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188779 + ... + 189461.

Almost surely, 2^129168960 is an apocalyptic number.

129168960 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 129168960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206398368).

129168960 is an abundant number, since it is smaller than the sum of its proper divisors (283627776).

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

129168960 is a wasteful number, since it uses less digits than its factorization.

129168960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 129168960 is about 11365.2523069222. The cubic root of 129168960 is about 505.4979371243.

The spelling of 129168960 in words is "one hundred twenty-nine million, one hundred sixty-eight thousand, nine hundred sixty".