66489662 has 16 divisors (see below), whose sum is σ = 100999440. Its totient is φ = 32826048.

The previous prime is 66489589. The next prime is 66489691. The reversal of 66489662 is 26698466.

It is a congruent number.

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, 61664 + ... + 62732.

It is an arithmetic number, because the mean of its divisors is an integer number (6312465).

Almost surely, 2^66489662 is an apocalyptic number.

66489662 is a deficient number, since it is larger than the sum of its proper divisors (34509778).

66489662 is a wasteful number, since it uses less digits than its factorization.

66489662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435.

The product of its digits is 746496, while the sum is 47.

The square root of 66489662 is about 8154.1193270641. The cubic root of 66489662 is about 405.1209555911.

The spelling of 66489662 in words is "sixty-six million, four hundred eighty-nine thousand, six hundred sixty-two".