205253016220 has 24 divisors (see below), whose sum is σ = 492607239264. Its totient is φ = 70372462656.

The previous prime is 205253016217. The next prime is 205253016223. The reversal of 205253016220 is 22610352502.

205253016220 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (205253016217) and next prime (205253016223).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205253016223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 733046347 + ... + 733046626.

It is an arithmetic number, because the mean of its divisors is an integer number (20525301636).

Almost surely, 2^205253016220 is an apocalyptic number.

205253016220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205253016220 is an abundant number, since it is smaller than the sum of its proper divisors (287354223044).

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

205253016220 is a wasteful number, since it uses less digits than its factorization.

205253016220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466092989 (or 1466092987 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 205253016220 its reverse (22610352502), we get a palindrome (227863368722).

The spelling of 205253016220 in words is "two hundred five billion, two hundred fifty-three million, sixteen thousand, two hundred twenty".