6558975149 has 2 divisors, whose sum is σ = 6558975150. Its totient is φ = 6558975148.

The previous prime is 6558975127. The next prime is 6558975169. The reversal of 6558975149 is 9415798556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4934079049 + 1624896100 = 70243^2 + 40310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6558975149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6558975109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3279487574 + 3279487575.

It is an arithmetic number, because the mean of its divisors is an integer number (3279487575).

Almost surely, 2^6558975149 is an apocalyptic number.

It is an amenable number.

6558975149 is a deficient number, since it is larger than the sum of its proper divisors (1).

6558975149 is an equidigital number, since it uses as much as digits as its factorization.

6558975149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608000, while the sum is 59.

The square root of 6558975149 is about 80987.4999552400. The cubic root of 6558975149 is about 1871.8828347490.

The spelling of 6558975149 in words is "six billion, five hundred fifty-eight million, nine hundred seventy-five thousand, one hundred forty-nine".