129538959116 has 24 divisors (see below), whose sum is σ = 259088793600. Its totient is φ = 55514366352.

The previous prime is 129538959103. The next prime is 129538959127. The reversal of 129538959116 is 611959835921.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695285 + ... + 861683.

It is an arithmetic number, because the mean of its divisors is an integer number (10795366400).

Almost surely, 2^129538959116 is an apocalyptic number.

It is an amenable number.

129538959116 is an abundant number, since it is smaller than the sum of its proper divisors (129549834484).

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

129538959116 is a wasteful number, since it uses less digits than its factorization.

129538959116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194213 (or 194211 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 59.

The spelling of 129538959116 in words is "one hundred twenty-nine billion, five hundred thirty-eight million, nine hundred fifty-nine thousand, one hundred sixteen".