6540506411 has 2 divisors, whose sum is σ = 6540506412. Its totient is φ = 6540506410.

The previous prime is 6540506381. The next prime is 6540506473. The reversal of 6540506411 is 1146050456.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6540506411 is a prime.

It is a super-2 number, since 2×6540506411² = 85556448224664201842, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (6540509411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3270253205 + 3270253206.

It is an arithmetic number, because the mean of its divisors is an integer number (3270253206).

Almost surely, 2^6540506411 is an apocalyptic number.

6540506411 is a deficient number, since it is larger than the sum of its proper divisors (1).

6540506411 is an equidigital number, since it uses as much as digits as its factorization.

6540506411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 6540506411 is about 80873.3974246167. The cubic root of 6540506411 is about 1870.1242361720.

Adding to 6540506411 its reverse (1146050456), we get a palindrome (7686556867).

The spelling of 6540506411 in words is "six billion, five hundred forty million, five hundred six thousand, four hundred eleven".