66062243077 has 2 divisors, whose sum is σ = 66062243078. Its totient is φ = 66062243076.

The previous prime is 66062243053. The next prime is 66062243081. The reversal of 66062243077 is 77034226066.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54426090436 + 11636152641 = 233294^2 + 107871^2 .

It is a cyclic number.

It is not a de Polignac number, because 66062243077 - 2⁷ = 66062242949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66062243047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33031121538 + 33031121539.

It is an arithmetic number, because the mean of its divisors is an integer number (33031121539).

Almost surely, 2^66062243077 is an apocalyptic number.

It is an amenable number.

66062243077 is a deficient number, since it is larger than the sum of its proper divisors (1).

66062243077 is an equidigital number, since it uses as much as digits as its factorization.

66062243077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 66062243077 in words is "sixty-six billion, sixty-two million, two hundred forty-three thousand, seventy-seven".