66470444 has 12 divisors (see below), whose sum is σ = 116558064. Its totient is φ = 33168144.

The previous prime is 66470429. The next prime is 66470477. The reversal of 66470444 is 44407466.

66470444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14507 + ... + 18530.

It is an arithmetic number, because the mean of its divisors is an integer number (9713172).

Almost surely, 2^66470444 is an apocalyptic number.

It is an amenable number.

66470444 is a deficient number, since it is larger than the sum of its proper divisors (50087620).

66470444 is a wasteful number, since it uses less digits than its factorization.

66470444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33544 (or 33542 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 35.

The square root of 66470444 is about 8152.9408191155. The cubic root of 66470444 is about 405.0819201254.

The spelling of 66470444 in words is "sixty-six million, four hundred seventy thousand, four hundred forty-four".