129818889216 has 264 divisors, whose sum is σ = 411612561360. Its totient is φ = 40726167552.

The previous prime is 129818889203. The next prime is 129818889227. The reversal of 129818889216 is 612988818921.

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4214800 + ... + 4245488.

It is an arithmetic number, because the mean of its divisors is an integer number (1559138490).

Almost surely, 2^129818889216 is an apocalyptic number.

129818889216 is a gapful number since it is divisible by the number (16) 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 129818889216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205806280680).

129818889216 is an abundant number, since it is smaller than the sum of its proper divisors (281793672144).

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

129818889216 is an equidigital number, since it uses as much as digits as its factorization.

129818889216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30741 (or 30711 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 63.

The spelling of 129818889216 in words is "one hundred twenty-nine billion, eight hundred eighteen million, eight hundred eighty-nine thousand, two hundred sixteen".