6657117587 has 2 divisors, whose sum is σ = 6657117588. Its totient is φ = 6657117586.

The previous prime is 6657117547. The next prime is 6657117637. The reversal of 6657117587 is 7857117566.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6657117587 - 2¹⁰ = 6657116563 is a prime.

It is not a weakly prime, because it can be changed into another prime (6657117547) 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, 3328558793 + 3328558794.

It is an arithmetic number, because the mean of its divisors is an integer number (3328558794).

Almost surely, 2^6657117587 is an apocalyptic number.

6657117587 is a deficient number, since it is larger than the sum of its proper divisors (1).

6657117587 is an equidigital number, since it uses as much as digits as its factorization.

6657117587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2469600, while the sum is 53.

The square root of 6657117587 is about 81591.1612063464. The cubic root of 6657117587 is about 1881.1730255779.

The spelling of 6657117587 in words is "six billion, six hundred fifty-seven million, one hundred seventeen thousand, five hundred eighty-seven".