129846668 has 18 divisors (see below), whose sum is σ = 264331116. Its totient is φ = 55648488.

The previous prime is 129846667. The next prime is 129846671. The reversal of 129846668 is 866648921.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (129846667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 331046 + ... + 331437.

It is an arithmetic number, because the mean of its divisors is an integer number (14685062).

Almost surely, 2^129846668 is an apocalyptic number.

It is an amenable number.

129846668 is an abundant number, since it is smaller than the sum of its proper divisors (134484448).

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

129846668 is a wasteful number, since it uses less digits than its factorization.

129846668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662501 (or 662492 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The square root of 129846668 is about 11395.0282140941. The cubic root of 129846668 is about 506.3804571987.

The spelling of 129846668 in words is "one hundred twenty-nine million, eight hundred forty-six thousand, six hundred sixty-eight".