129280169696 has 48 divisors (see below), whose sum is σ = 255097337040. Its totient is φ = 64493721600.

The previous prime is 129280169693. The next prime is 129280169701. The reversal of 129280169696 is 696961082921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129280169693) by changing a digit.

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, 47756375 + ... + 47759081.

It is an arithmetic number, because the mean of its divisors is an integer number (5314527855).

Almost surely, 2^129280169696 is an apocalyptic number.

129280169696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

129280169696 is a deficient number, since it is larger than the sum of its proper divisors (125817167344).

129280169696 is a wasteful number, since it uses less digits than its factorization.

129280169696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5547 (or 5539 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 59.

The spelling of 129280169696 in words is "one hundred twenty-nine billion, two hundred eighty million, one hundred sixty-nine thousand, six hundred ninety-six".