66060564427 has 16 divisors (see below), whose sum is σ = 77689704960. Its totient is φ = 55378231200.

The previous prime is 66060564403. The next prime is 66060564431. The reversal of 66060564427 is 72446506066.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66060564427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66060564497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99027 + ... + 376732.

It is an arithmetic number, because the mean of its divisors is an integer number (4855606560).

Almost surely, 2^66060564427 is an apocalyptic number.

66060564427 is a deficient number, since it is larger than the sum of its proper divisors (11629140533).

66060564427 is a wasteful number, since it uses less digits than its factorization.

66060564427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476754.

The product of its (nonzero) digits is 1451520, while the sum is 46.

The spelling of 66060564427 in words is "sixty-six billion, sixty million, five hundred sixty-four thousand, four hundred twenty-seven".