28222651160000 has 560 divisors, whose sum is σ = 77384903904000. Its totient is φ = 10123576320000.

The previous prime is 28222651159973. The next prime is 28222651160009. The reversal of 28222651160000 is 6115622282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28222651160009) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 32855239571 + ... + 32855240429.

It is an arithmetic number, because the mean of its divisors is an integer number (138187328400).

Almost surely, 2^{28222651160000} is an apocalyptic number.

28222651160000 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 28222651160000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38692451952000).

28222651160000 is an abundant number, since it is smaller than the sum of its proper divisors (49162252744000).

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

28222651160000 is an equidigital number, since it uses as much as digits as its factorization.

28222651160000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830 (or 1805 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

Adding to 28222651160000 its reverse (6115622282), we get a palindrome (28228766782282).

The spelling of 28222651160000 in words is "twenty-eight trillion, two hundred twenty-two billion, six hundred fifty-one million, one hundred sixty thousand".