6558698959 has 2 divisors, whose sum is σ = 6558698960. Its totient is φ = 6558698958.

The previous prime is 6558698903. The next prime is 6558698981. The reversal of 6558698959 is 9598968556.

6558698959 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6558698959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6558698999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3279349479 + 3279349480.

It is an arithmetic number, because the mean of its divisors is an integer number (3279349480).

Almost surely, 2^6558698959 is an apocalyptic number.

6558698959 is a deficient number, since it is larger than the sum of its proper divisors (1).

6558698959 is an equidigital number, since it uses as much as digits as its factorization.

6558698959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952000, while the sum is 70.

The square root of 6558698959 is about 80985.7947976063. The cubic root of 6558698959 is about 1871.8565601880.

The spelling of 6558698959 in words is "six billion, five hundred fifty-eight million, six hundred ninety-eight thousand, nine hundred fifty-nine".