68166607 has 2 divisors, whose sum is σ = 68166608. Its totient is φ = 68166606.

The previous prime is 68166599. The next prime is 68166629. The reversal of 68166607 is 70666186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68166607 - 2³ = 68166599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68166607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68166647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34083303 + 34083304.

It is an arithmetic number, because the mean of its divisors is an integer number (34083304).

Almost surely, 2^68166607 is an apocalyptic number.

68166607 is a deficient number, since it is larger than the sum of its proper divisors (1).

68166607 is an equidigital number, since it uses as much as digits as its factorization.

68166607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 68166607 is about 8256.3071042688. The cubic root of 68166607 is about 408.4985874874.

The spelling of 68166607 in words is "sixty-eight million, one hundred sixty-six thousand, six hundred seven".