66741075733 has 2 divisors, whose sum is σ = 66741075734. Its totient is φ = 66741075732.

The previous prime is 66741075647. The next prime is 66741075749. The reversal of 66741075733 is 33757014766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37821692484 + 28919383249 = 194478^2 + 170057^2 .

It is a cyclic number.

It is not a de Polignac number, because 66741075733 - 2³³ = 58151141141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66741070733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33370537866 + 33370537867.

It is an arithmetic number, because the mean of its divisors is an integer number (33370537867).

Almost surely, 2^66741075733 is an apocalyptic number.

It is an amenable number.

66741075733 is a deficient number, since it is larger than the sum of its proper divisors (1).

66741075733 is an equidigital number, since it uses as much as digits as its factorization.

66741075733 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2222640, while the sum is 49.

The spelling of 66741075733 in words is "sixty-six billion, seven hundred forty-one million, seventy-five thousand, seven hundred thirty-three".