66754714643027 has 8 divisors (see below), whose sum is σ = 66804669687264. Its totient is φ = 66704761545408.

The previous prime is 66754714642997. The next prime is 66754714643081. The reversal of 66754714643027 is 72034641745766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66754714643027 - 2⁶ = 66754714642963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66754714646027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72176303 + ... + 73095335.

It is an arithmetic number, because the mean of its divisors is an integer number (8350583710908).

Almost surely, 2^{66754714643027} is an apocalyptic number.

66754714643027 is a deficient number, since it is larger than the sum of its proper divisors (49955044237).

66754714643027 is a wasteful number, since it uses less digits than its factorization.

66754714643027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973309.

The product of its (nonzero) digits is 142248960, while the sum is 62.

The spelling of 66754714643027 in words is "sixty-six trillion, seven hundred fifty-four billion, seven hundred fourteen million, six hundred forty-three thousand, twenty-seven".