129665760000 has 1080 divisors, whose sum is σ = 518658663600. Its totient is φ = 28643328000.

The previous prime is 129665759989. The next prime is 129665760019. The reversal of 129665760000 is 67566921.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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 119 ways as a sum of consecutive naturals, for example, 870239926 + ... + 870240074.

Almost surely, 2^129665760000 is an apocalyptic number.

129665760000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129665760000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259329331800).

129665760000 is an abundant number, since it is smaller than the sum of its proper divisors (388992903600).

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

129665760000 is an equidigital number, since it uses as much as digits as its factorization.

129665760000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The spelling of 129665760000 in words is "one hundred twenty-nine billion, six hundred sixty-five million, seven hundred sixty thousand".