6561203332 has 12 divisors (see below), whose sum is σ = 11749131856. Its totient is φ = 3204308520.

The previous prime is 6561203321. The next prime is 6561203357. The reversal of 6561203332 is 2333021656.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6561203294 and 6561203303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19073094 + ... + 19073437.

Almost surely, 2^6561203332 is an apocalyptic number.

It is an amenable number.

6561203332 is a deficient number, since it is larger than the sum of its proper divisors (5187928524).

6561203332 is a wasteful number, since it uses less digits than its factorization.

6561203332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38146578 (or 38146576 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 6561203332 is about 81001.2551260781. The cubic root of 6561203332 is about 1872.0947797149.

Adding to 6561203332 its reverse (2333021656), we get a palindrome (8894224988).

The spelling of 6561203332 in words is "six billion, five hundred sixty-one million, two hundred three thousand, three hundred thirty-two".