66050077 has 2 divisors, whose sum is σ = 66050078. Its totient is φ = 66050076.

The previous prime is 66050071. The next prime is 66050167. The reversal of 66050077 is 77005066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46389721 + 19660356 = 6811^2 + 4434^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66050077 is a prime.

It is a super-2 number, since 2×66050077² = 8725225343411858, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66050071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33025038 + 33025039.

It is an arithmetic number, because the mean of its divisors is an integer number (33025039).

Almost surely, 2^66050077 is an apocalyptic number.

It is an amenable number.

66050077 is a deficient number, since it is larger than the sum of its proper divisors (1).

66050077 is an equidigital number, since it uses as much as digits as its factorization.

66050077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 66050077 is about 8127.1198465385. The cubic root of 66050077 is about 404.2261848981.

The spelling of 66050077 in words is "sixty-six million, fifty thousand, seventy-seven".