66740960268753 has 16 divisors (see below), whose sum is σ = 89448458964480. Its totient is φ = 44263761970176.

The previous prime is 66740960268751. The next prime is 66740960268811. The reversal of 66740960268753 is 35786206904766.

It is not a de Polignac number, because 66740960268753 - 2¹ = 66740960268751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66740960268751) 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, 466368 + ... + 11562846.

It is an arithmetic number, because the mean of its divisors is an integer number (5590528685280).

Almost surely, 2^{66740960268753} is an apocalyptic number.

It is an amenable number.

66740960268753 is a deficient number, since it is larger than the sum of its proper divisors (22707498695727).

66740960268753 is a wasteful number, since it uses less digits than its factorization.

66740960268753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11106856.

The product of its (nonzero) digits is 548674560, while the sum is 69.

The spelling of 66740960268753 in words is "sixty-six trillion, seven hundred forty billion, nine hundred sixty million, two hundred sixty-eight thousand, seven hundred fifty-three".