204422163456 has 352 divisors, whose sum is σ = 642386723328. Its totient is φ = 56587714560.

The previous prime is 204422163353. The next prime is 204422163493. The reversal of 204422163456 is 654361224402.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94595016 + ... + 94597176.

Almost surely, 2^204422163456 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 204422163456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321193361664).

204422163456 is an abundant number, since it is smaller than the sum of its proper divisors (437964559872).

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

204422163456 is a wasteful number, since it uses less digits than its factorization.

204422163456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327 (or 2309 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

Adding to 204422163456 its reverse (654361224402), we get a palindrome (858783387858).

The spelling of 204422163456 in words is "two hundred four billion, four hundred twenty-two million, one hundred sixty-three thousand, four hundred fifty-six".