66446284 has 12 divisors (see below), whose sum is σ = 117433008. Its totient is φ = 32894000.

The previous prime is 66446269. The next prime is 66446293. The reversal of 66446284 is 48264466.

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 3 ways as a sum of consecutive naturals, for example, 81832 + ... + 82639.

It is an arithmetic number, because the mean of its divisors is an integer number (9786084).

Almost surely, 2^66446284 is an apocalyptic number.

It is an amenable number.

66446284 is a deficient number, since it is larger than the sum of its proper divisors (50986724).

66446284 is a wasteful number, since it uses less digits than its factorization.

66446284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164576 (or 164574 counting only the distinct ones).

The product of its digits is 221184, while the sum is 40.

The square root of 66446284 is about 8151.4590105085. The cubic root of 66446284 is about 405.0328358278.

The spelling of 66446284 in words is "sixty-six million, four hundred forty-six thousand, two hundred eighty-four".