6540223232 has 36 divisors (see below), whose sum is σ = 13174724640. Its totient is φ = 3240096768.

The previous prime is 6540223201. The next prime is 6540223241. The reversal of 6540223232 is 2323220456.

It is a junction number, because it is equal to n+sod(n) for n = 6540223195 and 6540223204.

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, 89288 + ... + 145095.

Almost surely, 2^6540223232 is an apocalyptic number.

It is an amenable number.

6540223232 is an abundant number, since it is smaller than the sum of its proper divisors (6634501408).

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

6540223232 is a wasteful number, since it uses less digits than its factorization.

6540223232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234508 (or 234494 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 6540223232 is about 80871.6466507267. The cubic root of 6540223232 is about 1870.0972460319.

Adding to 6540223232 its reverse (2323220456), we get a palindrome (8863443688).

The spelling of 6540223232 in words is "six billion, five hundred forty million, two hundred twenty-three thousand, two hundred thirty-two".