129146796000 has 576 divisors, whose sum is σ = 471909110400. Its totient is φ = 33434419200.

The previous prime is 129146795989. The next prime is 129146796041. The reversal of 129146796000 is 697641921.

129146796000 is a `hidden beast` number, since 1 + 29 + 14 + 6 + 7 + 9 + 600 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 215603701 + ... + 215604299.

It is an arithmetic number, because the mean of its divisors is an integer number (819286650).

Almost surely, 2^129146796000 is an apocalyptic number.

129146796000 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 129146796000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235954555200).

129146796000 is an abundant number, since it is smaller than the sum of its proper divisors (342762314400).

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

129146796000 is a wasteful number, since it uses less digits than its factorization.

129146796000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 775 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 129146796000 in words is "one hundred twenty-nine billion, one hundred forty-six million, seven hundred ninety-six thousand".