66072344 has 32 divisors (see below), whose sum is σ = 135943920. Its totient is φ = 29917056.

The previous prime is 66072341. The next prime is 66072359. The reversal of 66072344 is 44327066.

66072344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 66072344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66072341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482 + ... + 11505.

Almost surely, 2^66072344 is an apocalyptic number.

It is an amenable number.

66072344 is an abundant number, since it is smaller than the sum of its proper divisors (69871576).

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

66072344 is a wasteful number, since it uses less digits than its factorization.

66072344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12059 (or 12055 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 66072344 is about 8128.4896506055. The cubic root of 66072344 is about 404.2716044423.

The spelling of 66072344 in words is "sixty-six million, seventy-two thousand, three hundred forty-four".