66740606711 has 2 divisors, whose sum is σ = 66740606712. Its totient is φ = 66740606710.

The previous prime is 66740606701. The next prime is 66740606741. The reversal of 66740606711 is 11760604766.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66740606711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66740606701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33370303355 + 33370303356.

It is an arithmetic number, because the mean of its divisors is an integer number (33370303356).

Almost surely, 2^66740606711 is an apocalyptic number.

66740606711 is a deficient number, since it is larger than the sum of its proper divisors (1).

66740606711 is an equidigital number, since it uses as much as digits as its factorization.

66740606711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 66740606711 in words is "sixty-six billion, seven hundred forty million, six hundred six thousand, seven hundred eleven".