66003441 has 12 divisors (see below), whose sum is σ = 102372912. Its totient is φ = 37716168.

The previous prime is 66003439. The next prime is 66003451. The reversal of 66003441 is 14430066.

It is not a de Polignac number, because 66003441 - 2¹ = 66003439 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66003451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224355 + ... + 224648.

It is an arithmetic number, because the mean of its divisors is an integer number (8531076).

Almost surely, 2^66003441 is an apocalyptic number.

It is an amenable number.

66003441 is a deficient number, since it is larger than the sum of its proper divisors (36369471).

66003441 is a wasteful number, since it uses less digits than its factorization.

66003441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449020 (or 449013 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 66003441 is about 8124.2501807859. The cubic root of 66003441 is about 404.1310251255.

The spelling of 66003441 in words is "sixty-six million, three thousand, four hundred forty-one".