129766168 has 32 divisors (see below), whose sum is σ = 294429600. Its totient is φ = 52342272.

The previous prime is 129766163. The next prime is 129766177. The reversal of 129766168 is 861667921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129766163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67203 + ... + 69106.

It is an arithmetic number, because the mean of its divisors is an integer number (9200925).

Almost surely, 2^129766168 is an apocalyptic number.

It is an amenable number.

129766168 is an abundant number, since it is smaller than the sum of its proper divisors (164663432).

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

129766168 is a wasteful number, since it uses less digits than its factorization.

129766168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136339 (or 136335 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 129766168 is about 11391.4954242189. The cubic root of 129766168 is about 506.2757900188.

The spelling of 129766168 in words is "one hundred twenty-nine million, seven hundred sixty-six thousand, one hundred sixty-eight".