205133443340 has 48 divisors (see below), whose sum is σ = 492353757504. Its totient is φ = 70326681600.

The previous prime is 205133443289. The next prime is 205133443351. The reversal of 205133443340 is 43344331502.

It is a junction number, because it is equal to n+sod(n) for n = 205133443297 and 205133443306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2468060 + ... + 2549820.

It is an arithmetic number, because the mean of its divisors is an integer number (10257369948).

Almost surely, 2^205133443340 is an apocalyptic number.

205133443340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205133443340 is an abundant number, since it is smaller than the sum of its proper divisors (287220314164).

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

205133443340 is a wasteful number, since it uses less digits than its factorization.

205133443340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99698 (or 99696 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 205133443340 its reverse (43344331502), we get a palindrome (248477774842).

The spelling of 205133443340 in words is "two hundred five billion, one hundred thirty-three million, four hundred forty-three thousand, three hundred forty".