66118241 has 8 divisors (see below), whose sum is σ = 75634944. Its totient is φ = 56619360.

The previous prime is 66118211. The next prime is 66118249. The reversal of 66118241 is 14281166.

66118241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 66118241 - 2¹⁰ = 66117217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66118249) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4781 + ... + 12453.

It is an arithmetic number, because the mean of its divisors is an integer number (9454368).

Almost surely, 2^66118241 is an apocalyptic number.

It is an amenable number.

66118241 is a deficient number, since it is larger than the sum of its proper divisors (9516703).

66118241 is a wasteful number, since it uses less digits than its factorization.

66118241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8911.

The product of its digits is 2304, while the sum is 29.

The square root of 66118241 is about 8131.3123787000. The cubic root of 66118241 is about 404.3651915520.

The spelling of 66118241 in words is "sixty-six million, one hundred eighteen thousand, two hundred forty-one".