68066077 has 2 divisors, whose sum is σ = 68066078. Its totient is φ = 68066076.

The previous prime is 68066071. The next prime is 68066101. The reversal of 68066077 is 77066086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54331641 + 13734436 = 7371^2 + 3706^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68066077 is a prime.

It is a super-3 number, since 3×68066077³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68066071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34033038 + 34033039.

It is an arithmetic number, because the mean of its divisors is an integer number (34033039).

Almost surely, 2^68066077 is an apocalyptic number.

It is an amenable number.

68066077 is a deficient number, since it is larger than the sum of its proper divisors (1).

68066077 is an equidigital number, since it uses as much as digits as its factorization.

68066077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 68066077 is about 8250.2167850306. The cubic root of 68066077 is about 408.2976750018.

Subtracting 68066077 from its reverse (77066086), we obtain a palindrome (9000009).

The spelling of 68066077 in words is "sixty-eight million, sixty-six thousand, seventy-seven".