129626664 has 32 divisors (see below), whose sum is σ = 341124000. Its totient is φ = 40934592.

The previous prime is 129626659. The next prime is 129626677. The reversal of 129626664 is 466626921.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141679 + ... + 142590.

It is an arithmetic number, because the mean of its divisors is an integer number (10660125).

Almost surely, 2^129626664 is an apocalyptic number.

It is an amenable number.

129626664 is an abundant number, since it is smaller than the sum of its proper divisors (211497336).

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

129626664 is a wasteful number, since it uses less digits than its factorization.

129626664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284297 (or 284293 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 129626664 is about 11385.3706132036. The cubic root of 129626664 is about 506.0943024935.

The spelling of 129626664 in words is "one hundred twenty-nine million, six hundred twenty-six thousand, six hundred sixty-four".