20204919738304 has 112 divisors (see below), whose sum is σ = 46501881868288. Its totient is φ = 8531546185728.

The previous prime is 20204919738257. The next prime is 20204919738349. The reversal of 20204919738304 is 40383791940202.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8648197 + ... + 10733179.

It is an arithmetic number, because the mean of its divisors is an integer number (415195373824).

Almost surely, 2^{20204919738304} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20204919738304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23250940934144).

20204919738304 is an abundant number, since it is smaller than the sum of its proper divisors (26296962129984).

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

20204919738304 is a wasteful number, since it uses less digits than its factorization.

20204919738304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085322 (or 2085312 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 20204919738304 in words is "twenty trillion, two hundred four billion, nine hundred nineteen million, seven hundred thirty-eight thousand, three hundred four".