6658117567 has 2 divisors, whose sum is σ = 6658117568. Its totient is φ = 6658117566.

The previous prime is 6658117519. The next prime is 6658117573. The reversal of 6658117567 is 7657118566.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6658117567 - 2¹⁹ = 6657593279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6658117517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3329058783 + 3329058784.

It is an arithmetic number, because the mean of its divisors is an integer number (3329058784).

Almost surely, 2^6658117567 is an apocalyptic number.

6658117567 is a deficient number, since it is larger than the sum of its proper divisors (1).

6658117567 is an equidigital number, since it uses as much as digits as its factorization.

6658117567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2116800, while the sum is 52.

The square root of 6658117567 is about 81597.2889684455. The cubic root of 6658117567 is about 1881.2672125488.

Subtracting 6658117567 from its reverse (7657118566), we obtain a palindrome (999000999).

It can be divided in two parts, 66581 and 17567, that added together give a palindrome (84148).

The spelling of 6658117567 in words is "six billion, six hundred fifty-eight million, one hundred seventeen thousand, five hundred sixty-seven".