66439041 has 8 divisors (see below), whose sum is σ = 88976544. Its totient is φ = 44097120.

The previous prime is 66439033. The next prime is 66439057. The reversal of 66439041 is 14093466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66439041 - 2³ = 66439033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66438993 and 66439011.

It is not an unprimeable number, because it can be changed into a prime (66439001) 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, 48100 + ... + 49461.

It is an arithmetic number, because the mean of its divisors is an integer number (11122068).

Almost surely, 2^66439041 is an apocalyptic number.

It is an amenable number.

66439041 is a deficient number, since it is larger than the sum of its proper divisors (22537503).

66439041 is a wasteful number, since it uses less digits than its factorization.

66439041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97791.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 66439041 is about 8151.0147221067. The cubic root of 66439041 is about 405.0181183786.

The spelling of 66439041 in words is "sixty-six million, four hundred thirty-nine thousand, forty-one".