22778316800 has 324 divisors, whose sum is σ = 61144709535. Its totient is φ = 8414658560.

The previous prime is 22778316797. The next prime is 22778316859. The reversal of 22778316800 is 861387722.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 8737014784 + 14041302016 = 93472^2 + 118496^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106720.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 785459186 + ... + 785459214.

Almost surely, 2^22778316800 is an apocalyptic number.

22778316800 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 22778316800

22778316800 is an abundant number, since it is smaller than the sum of its proper divisors (38366392735).

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

22778316800 is an equidigital number, since it uses as much as digits as its factorization.

22778316800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 22778316800 in words is "twenty-two billion, seven hundred seventy-eight million, three hundred sixteen thousand, eight hundred".