66045241 has 8 divisors (see below), whose sum is σ = 66608640. Its totient is φ = 65484672.

The previous prime is 66045211. The next prime is 66045251. The reversal of 66045241 is 14254066.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66045241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66045211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78300 + ... + 79138.

It is an arithmetic number, because the mean of its divisors is an integer number (8326080).

Almost surely, 2^66045241 is an apocalyptic number.

It is an amenable number.

66045241 is a deficient number, since it is larger than the sum of its proper divisors (563399).

66045241 is a wasteful number, since it uses less digits than its factorization.

66045241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 66045241 is about 8126.8223187172. The cubic root of 66045241 is about 404.2163192243.

The spelling of 66045241 in words is "sixty-six million, forty-five thousand, two hundred forty-one".