66740040006707 has 16 divisors (see below), whose sum is σ = 67551570777600. Its totient is φ = 65929903733760.

The previous prime is 66740040006691. The next prime is 66740040006713. The reversal of 66740040006707 is 70760004004766.

It is a cyclic number.

It is not a de Polignac number, because 66740040006707 - 2⁴ = 66740040006691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66740040006737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493977419 + ... + 494112507.

It is an arithmetic number, because the mean of its divisors is an integer number (4221973173600).

Almost surely, 2^{66740040006707} is an apocalyptic number.

66740040006707 is a deficient number, since it is larger than the sum of its proper divisors (811530770893).

66740040006707 is a wasteful number, since it uses less digits than its factorization.

66740040006707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140206.

The product of its (nonzero) digits is 1185408, while the sum is 47.

The spelling of 66740040006707 in words is "sixty-six trillion, seven hundred forty billion, forty million, six thousand, seven hundred seven".