66485066 has 16 divisors (see below), whose sum is σ = 105140160. Its totient is φ = 31443840.

The previous prime is 66485063. The next prime is 66485087. The reversal of 66485066 is 66058466.

It is not an unprimeable number, because it can be changed into a prime (66485063) 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, 38330 + ... + 40026.

It is an arithmetic number, because the mean of its divisors is an integer number (6571260).

Almost surely, 2^66485066 is an apocalyptic number.

66485066 is a deficient number, since it is larger than the sum of its proper divisors (38655094).

66485066 is a wasteful number, since it uses less digits than its factorization.

66485066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2749.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 66485066 is about 8153.8375014468. The cubic root of 66485066 is about 405.1116209128. Note that the first 3 decimals are identical.

The spelling of 66485066 in words is "sixty-six million, four hundred eighty-five thousand, sixty-six".