66559532 has 24 divisors (see below), whose sum is σ = 126368256. Its totient is φ = 30492288.

The previous prime is 66559481. The next prime is 66559543. The reversal of 66559532 is 23595566.

It is a self number, because there is not a number n which added to its sum of digits gives 66559532.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2453 + ... + 11795.

It is an arithmetic number, because the mean of its divisors is an integer number (5265344).

Almost surely, 2^66559532 is an apocalyptic number.

It is an amenable number.

66559532 is a deficient number, since it is larger than the sum of its proper divisors (59808724).

66559532 is a wasteful number, since it uses less digits than its factorization.

66559532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9497 (or 9495 counting only the distinct ones).

The product of its digits is 243000, while the sum is 41.

The square root of 66559532 is about 8158.4025397133. The cubic root of 66559532 is about 405.2628116889.

The spelling of 66559532 in words is "sixty-six million, five hundred fifty-nine thousand, five hundred thirty-two".