6540433132 has 6 divisors (see below), whose sum is σ = 11445757988. Its totient is φ = 3270216564.

The previous prime is 6540433129. The next prime is 6540433139. The reversal of 6540433132 is 2313340456.

It is a junction number, because it is equal to n+sod(n) for n = 6540433094 and 6540433103.

It is not an unprimeable number, because it can be changed into a prime (6540433139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 817554138 + ... + 817554145.

Almost surely, 2^6540433132 is an apocalyptic number.

It is an amenable number.

6540433132 is a deficient number, since it is larger than the sum of its proper divisors (4905324856).

6540433132 is a wasteful number, since it uses less digits than its factorization.

6540433132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635108287 (or 1635108285 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 6540433132 is about 80872.9443757305. The cubic root of 6540433132 is about 1870.1172519348.

Adding to 6540433132 its reverse (2313340456), we get a palindrome (8853773588).

The spelling of 6540433132 in words is "six billion, five hundred forty million, four hundred thirty-three thousand, one hundred thirty-two".