6540658099 has 2 divisors, whose sum is σ = 6540658100. Its totient is φ = 6540658098.

The previous prime is 6540658063. The next prime is 6540658123. The reversal of 6540658099 is 9908560456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6540658099 - 2²¹ = 6538560947 is a prime.

It is not a weakly prime, because it can be changed into another prime (6540658009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3270329049 + 3270329050.

It is an arithmetic number, because the mean of its divisors is an integer number (3270329050).

Almost surely, 2^6540658099 is an apocalyptic number.

6540658099 is a deficient number, since it is larger than the sum of its proper divisors (1).

6540658099 is an equidigital number, since it uses as much as digits as its factorization.

6540658099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2332800, while the sum is 52.

The square root of 6540658099 is about 80874.3352306527. The cubic root of 6540658099 is about 1870.1386934222.

The spelling of 6540658099 in words is "six billion, five hundred forty million, six hundred fifty-eight thousand, ninety-nine".