28556160000 has 440 divisors, whose sum is σ = 96689799360. Its totient is φ = 7489536000.

The previous prime is 28556159977. The next prime is 28556160001. The reversal of 28556160000 is 6165582.

It is not an unprimeable number, because it can be changed into a prime (28556160001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 205439931 + ... + 205440069.

It is an arithmetic number, because the mean of its divisors is an integer number (219749544).

Almost surely, 2^28556160000 is an apocalyptic number.

28556160000 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 28556160000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48344899680).

28556160000 is an abundant number, since it is smaller than the sum of its proper divisors (68133639360).

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

28556160000 is a wasteful number, since it uses less digits than its factorization.

28556160000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 28556160000 in words is "twenty-eight billion, five hundred fifty-six million, one hundred sixty thousand".