129989766144 has 352 divisors, whose sum is σ = 425088470016. Its totient is φ = 34469314560.

The previous prime is 129989766107. The next prime is 129989766157. The reversal of 129989766144 is 441667989921.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26684029 + ... + 26688899.

Almost surely, 2^129989766144 is an apocalyptic number.

129989766144 is a gapful number since it is divisible by the number (14) 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 129989766144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212544235008).

129989766144 is an abundant number, since it is smaller than the sum of its proper divisors (295098703872).

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

129989766144 is a wasteful number, since it uses less digits than its factorization.

129989766144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4991 (or 4973 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 66.

The spelling of 129989766144 in words is "one hundred twenty-nine billion, nine hundred eighty-nine million, seven hundred sixty-six thousand, one hundred forty-four".