129408080116 has 48 divisors (see below), whose sum is σ = 260968587264. Its totient is φ = 55001274336.

The previous prime is 129408080111. The next prime is 129408080173. The reversal of 129408080116 is 611080804921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129408080111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1602771 + ... + 1681573.

It is an arithmetic number, because the mean of its divisors is an integer number (5436845568).

Almost surely, 2^129408080116 is an apocalyptic number.

It is an amenable number.

129408080116 is an abundant number, since it is smaller than the sum of its proper divisors (131560507148).

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

129408080116 is a wasteful number, since it uses less digits than its factorization.

129408080116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79300 (or 79298 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 40.

The spelling of 129408080116 in words is "one hundred twenty-nine billion, four hundred eight million, eighty thousand, one hundred sixteen".