66464266 has 16 divisors (see below), whose sum is σ = 108917280. Its totient is φ = 30167280.

The previous prime is 66464263. The next prime is 66464269. The reversal of 66464266 is 66246466.

66464266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (66464263) and next prime (66464269).

It is not an unprimeable number, because it can be changed into a prime (66464263) 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, 17140 + ... + 20656.

It is an arithmetic number, because the mean of its divisors is an integer number (6807330).

Almost surely, 2^66464266 is an apocalyptic number.

66464266 is a deficient number, since it is larger than the sum of its proper divisors (42453014).

66464266 is a wasteful number, since it uses less digits than its factorization.

66464266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389.

The product of its digits is 248832, while the sum is 40.

The square root of 66464266 is about 8152.5619286210. The cubic root of 66464266 is about 405.0693698174.

The spelling of 66464266 in words is "sixty-six million, four hundred sixty-four thousand, two hundred sixty-six".