129937996800 has 660 divisors, whose sum is σ = 485022664896. Its totient is φ = 34371993600.

The previous prime is 129937996723. The next prime is 129937996817. The reversal of 129937996800 is 8699739921.

It is a happy number.

129937996800 is a `hidden beast` number, since 12 + 99 + 379 + 96 + 80 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 462412660 + ... + 462412940.

Almost surely, 2^129937996800 is an apocalyptic number.

129937996800 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 129937996800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242511332448).

129937996800 is an abundant number, since it is smaller than the sum of its proper divisors (355084668096).

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

129937996800 is a wasteful number, since it uses less digits than its factorization.

129937996800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 63.

The spelling of 129937996800 in words is "one hundred twenty-nine billion, nine hundred thirty-seven million, nine hundred ninety-six thousand, eight hundred".