206404225552 has 80 divisors (see below), whose sum is σ = 473540227200. Its totient is φ = 85274542080.

The previous prime is 206404225409. The next prime is 206404225553. The reversal of 206404225552 is 255522404602.

It is not an unprimeable number, because it can be changed into a prime (206404225553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2032399 + ... + 2131537.

It is an arithmetic number, because the mean of its divisors is an integer number (5919252840).

Almost surely, 2^206404225552 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 206404225552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236770113600).

206404225552 is an abundant number, since it is smaller than the sum of its proper divisors (267136001648).

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

206404225552 is a wasteful number, since it uses less digits than its factorization.

206404225552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99824 (or 99818 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

The spelling of 206404225552 in words is "two hundred six billion, four hundred four million, two hundred twenty-five thousand, five hundred fifty-two".