205223154304 has 64 divisors (see below), whose sum is σ = 467614267200. Its totient is φ = 87884052480.

The previous prime is 205223154271. The next prime is 205223154307. The reversal of 205223154304 is 403451322502.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (205223154307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066099 + ... + 1243789.

It is an arithmetic number, because the mean of its divisors is an integer number (7306472925).

Almost surely, 2^205223154304 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 205223154304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233807133600).

205223154304 is an abundant number, since it is smaller than the sum of its proper divisors (262391112896).

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

205223154304 is a wasteful number, since it uses less digits than its factorization.

205223154304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179001 (or 178989 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 205223154304 its reverse (403451322502), we get a palindrome (608674476806).

The spelling of 205223154304 in words is "two hundred five billion, two hundred twenty-three million, one hundred fifty-four thousand, three hundred four".