66559484 has 6 divisors (see below), whose sum is σ = 116479104. Its totient is φ = 33279740.

The previous prime is 66559481. The next prime is 66559543. The reversal of 66559484 is 48495566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66559481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8319932 + ... + 8319939.

It is an arithmetic number, because the mean of its divisors is an integer number (19413184).

Almost surely, 2^66559484 is an apocalyptic number.

It is an amenable number.

66559484 is a deficient number, since it is larger than the sum of its proper divisors (49919620).

66559484 is a wasteful number, since it uses less digits than its factorization.

66559484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16639875 (or 16639873 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 47.

The square root of 66559484 is about 8158.3995979604. The cubic root of 66559484 is about 405.2627142693.

The spelling of 66559484 in words is "sixty-six million, five hundred fifty-nine thousand, four hundred eighty-four".