68666359 has 2 divisors, whose sum is σ = 68666360. Its totient is φ = 68666358.

The previous prime is 68666347. The next prime is 68666441. The reversal of 68666359 is 95366686.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68666359 - 2⁵ = 68666327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68666309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34333179 + 34333180.

It is an arithmetic number, because the mean of its divisors is an integer number (34333180).

Almost surely, 2^68666359 is an apocalyptic number.

68666359 is a deficient number, since it is larger than the sum of its proper divisors (1).

68666359 is an equidigital number, since it uses as much as digits as its factorization.

68666359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 49.

The square root of 68666359 is about 8286.5166988307. The cubic root of 68666359 is about 409.4944373371.

It can be divided in two parts, 6866 and 6359, that added together give a square (13225 = 115²).

The spelling of 68666359 in words is "sixty-eight million, six hundred sixty-six thousand, three hundred fifty-nine".