66740336703701 has 2 divisors, whose sum is σ = 66740336703702. Its totient is φ = 66740336703700.

The previous prime is 66740336703683. The next prime is 66740336703773. The reversal of 66740336703701 is 10730763304766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39120834262225 + 27619502441476 = 6254665^2 + 5255426^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66740336703701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66740336703791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33370168351850 + 33370168351851.

It is an arithmetic number, because the mean of its divisors is an integer number (33370168351851).

Almost surely, 2^{66740336703701} is an apocalyptic number.

It is an amenable number.

66740336703701 is a deficient number, since it is larger than the sum of its proper divisors (1).

66740336703701 is an equidigital number, since it uses as much as digits as its factorization.

66740336703701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8001504, while the sum is 53.

The spelling of 66740336703701 in words is "sixty-six trillion, seven hundred forty billion, three hundred thirty-six million, seven hundred three thousand, seven hundred one".