20099523072000 has 832 divisors, whose sum is σ = 69528458188800. Its totient is φ = 5150343168000.

The previous prime is 20099523071983. The next prime is 20099523072029. The reversal of 20099523072000 is 27032599002.

It is a self number, because there is not a number n which added to its sum of digits gives 20099523072000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7094782584 + ... + 7094785416.

It is an arithmetic number, because the mean of its divisors is an integer number (83567858400).

Almost surely, 2^{20099523072000} is an apocalyptic number.

20099523072000 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 20099523072000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34764229094400).

20099523072000 is an abundant number, since it is smaller than the sum of its proper divisors (49428935116800).

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

20099523072000 is a wasteful number, since it uses less digits than its factorization.

20099523072000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055 (or 3023 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The spelling of 20099523072000 in words is "twenty trillion, ninety-nine billion, five hundred twenty-three million, seventy-two thousand".