6540503015117 has 2 divisors, whose sum is σ = 6540503015118. Its totient is φ = 6540503015116.

The previous prime is 6540503015077. The next prime is 6540503015131. The reversal of 6540503015117 is 7115103050456.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6415207546276 + 125295468841 = 2532826^2 + 353971^2 .

It is a cyclic number.

It is not a de Polignac number, because 6540503015117 - 2³² = 6536208047821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6540503015017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3270251507558 + 3270251507559.

It is an arithmetic number, because the mean of its divisors is an integer number (3270251507559).

Almost surely, 2^{6540503015117} is an apocalyptic number.

It is an amenable number.

6540503015117 is a deficient number, since it is larger than the sum of its proper divisors (1).

6540503015117 is an equidigital number, since it uses as much as digits as its factorization.

6540503015117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 38.

The spelling of 6540503015117 in words is "six trillion, five hundred forty billion, five hundred three million, fifteen thousand, one hundred seventeen".