66671003670101 has 2 divisors, whose sum is σ = 66671003670102. Its totient is φ = 66671003670100.

The previous prime is 66671003669929. The next prime is 66671003670113. The reversal of 66671003670101 is 10107630017666.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34145311873201 + 32525691796900 = 5843399^2 + 5703130^2 .

It is a cyclic number.

It is not a de Polignac number, because 66671003670101 - 2¹⁰ = 66671003669077 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66671003673101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33335501835050 + 33335501835051.

It is an arithmetic number, because the mean of its divisors is an integer number (33335501835051).

Almost surely, 2^{66671003670101} is an apocalyptic number.

It is an amenable number.

66671003670101 is a deficient number, since it is larger than the sum of its proper divisors (1).

66671003670101 is an equidigital number, since it uses as much as digits as its factorization.

66671003670101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 44.

Adding to 66671003670101 its reverse (10107630017666), we get a palindrome (76778633687767).

The spelling of 66671003670101 in words is "sixty-six trillion, six hundred seventy-one billion, three million, six hundred seventy thousand, one hundred one".