66527472566 has 8 divisors (see below), whose sum is σ = 99841793184. Its totient is φ = 33246874840.

The previous prime is 66527472541. The next prime is 66527472569.

66527472566 is nontrivially palindromic in base 10.

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

It is a super-3 number, since 3×66527472566³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66527472569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8425790 + ... + 8433681.

It is an arithmetic number, because the mean of its divisors is an integer number (12480224148).

Almost surely, 2^66527472566 is an apocalyptic number.

66527472566 is a deficient number, since it is larger than the sum of its proper divisors (33314320618).

66527472566 is a wasteful number, since it uses less digits than its factorization.

66527472566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16861446.

The product of its digits is 25401600, while the sum is 56.

The spelling of 66527472566 in words is "sixty-six billion, five hundred twenty-seven million, four hundred seventy-two thousand, five hundred sixty-six".