66704101001 has 2 divisors, whose sum is σ = 66704101002. Its totient is φ = 66704101000.

The previous prime is 66704100973. The next prime is 66704101019. The reversal of 66704101001 is 10010140766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66370125376 + 333975625 = 257624^2 + 18275^2 .

It is a cyclic number.

It is not a de Polignac number, because 66704101001 - 2⁶ = 66704100937 is a prime.

It is not a weakly prime, because it can be changed into another prime (66704101031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33352050500 + 33352050501.

It is an arithmetic number, because the mean of its divisors is an integer number (33352050501).

Almost surely, 2^66704101001 is an apocalyptic number.

It is an amenable number.

66704101001 is a deficient number, since it is larger than the sum of its proper divisors (1).

66704101001 is an equidigital number, since it uses as much as digits as its factorization.

66704101001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

Adding to 66704101001 its reverse (10010140766), we get a palindrome (76714241767).

The spelling of 66704101001 in words is "sixty-six billion, seven hundred four million, one hundred one thousand, one".