20129845824000 has 1920 divisors, whose sum is σ = 84318843248640. Its totient is φ = 4566921216000.

The previous prime is 20129845823999. The next prime is 20129845824017. The reversal of 20129845824000 is 42854892102.

20129845824000 is a `hidden beast` number, since 2 + 0 + 1 + 29 + 8 + 4 + 582 + 40 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

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

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 6849214531 + ... + 6849217469.

It is an arithmetic number, because the mean of its divisors is an integer number (43916064192).

Almost surely, 2^{20129845824000} is an apocalyptic number.

20129845824000 is a gapful number since it is divisible by the number (20) 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 20129845824000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42159421624320).

20129845824000 is an abundant number, since it is smaller than the sum of its proper divisors (64188997424640).

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

20129845824000 is a wasteful number, since it uses less digits than its factorization.

20129845824000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059 (or 3030 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 20129845824000 in words is "twenty trillion, one hundred twenty-nine billion, eight hundred forty-five million, eight hundred twenty-four thousand".