66586275474 has 8 divisors (see below), whose sum is σ = 133172550960. Its totient is φ = 22195425156.

The previous prime is 66586275473. The next prime is 66586275487. The reversal of 66586275474 is 47457268566.

It is a happy number.

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

66586275474 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66586275473) 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 3 ways as a sum of consecutive naturals, for example, 5548856284 + ... + 5548856295.

It is an arithmetic number, because the mean of its divisors is an integer number (16646568870).

Almost surely, 2^66586275474 is an apocalyptic number.

66586275474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66586275474 is a wasteful number, since it uses less digits than its factorization.

66586275474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11097712584.

The product of its digits is 67737600, while the sum is 60.

The spelling of 66586275474 in words is "sixty-six billion, five hundred eighty-six million, two hundred seventy-five thousand, four hundred seventy-four".