66006744 has 32 divisors (see below), whose sum is σ = 165240000. Its totient is φ = 21972512.

The previous prime is 66006739. The next prime is 66006769. The reversal of 66006744 is 44760066.

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, 23107 + ... + 25805.

It is an arithmetic number, because the mean of its divisors is an integer number (5163750).

Almost surely, 2^66006744 is an apocalyptic number.

It is an amenable number.

66006744 is an abundant number, since it is smaller than the sum of its proper divisors (99233256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66006744 is a wasteful number, since it uses less digits than its factorization.

66006744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3727 (or 3723 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 66006744 is about 8124.4534585411. The cubic root of 66006744 is about 404.1377663018.

The spelling of 66006744 in words is "sixty-six million, six thousand, seven hundred forty-four".