6540116441 has 4 divisors (see below), whose sum is σ = 6564249984. Its totient is φ = 6515982900.

The previous prime is 6540116437. The next prime is 6540116459. The reversal of 6540116441 is 1446110456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6540116441 - 2² = 6540116437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6540116398 and 6540116407.

It is not an unprimeable number, because it can be changed into a prime (6540116431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12066365 + ... + 12066906.

It is an arithmetic number, because the mean of its divisors is an integer number (1641062496).

Almost surely, 2^6540116441 is an apocalyptic number.

It is an amenable number.

6540116441 is a deficient number, since it is larger than the sum of its proper divisors (24133543).

6540116441 is a wasteful number, since it uses less digits than its factorization.

6540116441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24133542.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 6540116441 is about 80870.9863980896. The cubic root of 6540116441 is about 1870.0870674475.

Adding to 6540116441 its reverse (1446110456), we get a palindrome (7986226897).

The spelling of 6540116441 in words is "six billion, five hundred forty million, one hundred sixteen thousand, four hundred forty-one".