68066543 has 2 divisors, whose sum is σ = 68066544. Its totient is φ = 68066542.

The previous prime is 68066533. The next prime is 68066561. The reversal of 68066543 is 34566086.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68066543 - 2⁸ = 68066287 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68066497 and 68066506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68066503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34033271 + 34033272.

It is an arithmetic number, because the mean of its divisors is an integer number (34033272).

Almost surely, 2^68066543 is an apocalyptic number.

68066543 is a deficient number, since it is larger than the sum of its proper divisors (1).

68066543 is an equidigital number, since it uses as much as digits as its factorization.

68066543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 68066543 is about 8250.2450266644. The cubic root of 68066543 is about 408.2986067742.

The spelling of 68066543 in words is "sixty-eight million, sixty-six thousand, five hundred forty-three".