19928225616000 has 1536 divisors, whose sum is σ = 75481408154880. Its totient is φ = 4622258995200.

The previous prime is 19928225615873. The next prime is 19928225616001. The reversal of 19928225616000 is 61652282991.

It is not an unprimeable number, because it can be changed into a prime (19928225616001) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 24097007587 + ... + 24097008413.

Almost surely, 2^{19928225616000} is an apocalyptic number.

19928225616000 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 19928225616000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37740704077440).

19928225616000 is an abundant number, since it is smaller than the sum of its proper divisors (55553182538880).

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

19928225616000 is a wasteful number, since it uses less digits than its factorization.

19928225616000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991 (or 946 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 51.

Adding to 19928225616000 its reverse (61652282991), we get a palindrome (19989877898991).

The spelling of 19928225616000 in words is "nineteen trillion, nine hundred twenty-eight billion, two hundred twenty-five million, six hundred sixteen thousand".