6866570655907 has 2 divisors, whose sum is σ = 6866570655908. Its totient is φ = 6866570655906.

The previous prime is 6866570655899. The next prime is 6866570655977. The reversal of 6866570655907 is 7095560756686.

It is an a-pointer prime, because the next prime (6866570655977) can be obtained adding 6866570655907 to its sum of digits (70).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6866570655907 - 2³ = 6866570655899 is a prime.

It is not a weakly prime, because it can be changed into another prime (6866570655977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3433285327953 + 3433285327954.

It is an arithmetic number, because the mean of its divisors is an integer number (3433285327954).

Almost surely, 2^{6866570655907} is an apocalyptic number.

6866570655907 is a deficient number, since it is larger than the sum of its proper divisors (1).

6866570655907 is an equidigital number, since it uses as much as digits as its factorization.

6866570655907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536000, while the sum is 70.

The spelling of 6866570655907 in words is "six trillion, eight hundred sixty-six billion, five hundred seventy million, six hundred fifty-five thousand, nine hundred seven".