66443014 has 16 divisors (see below), whose sum is σ = 109083600. Its totient is φ = 30101760.

The previous prime is 66442997. The next prime is 66443017. The reversal of 66443014 is 41034466.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66443017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2062 + ... + 11710.

It is an arithmetic number, because the mean of its divisors is an integer number (6817725).

Almost surely, 2^66443014 is an apocalyptic number.

66443014 is a deficient number, since it is larger than the sum of its proper divisors (42640586).

66443014 is a wasteful number, since it uses less digits than its factorization.

66443014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9975.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 66443014 is about 8151.2584304511. The cubic root of 66443014 is about 405.0261914678.

The spelling of 66443014 in words is "sixty-six million, four hundred forty-three thousand, fourteen".