66045306 has 16 divisors (see below), whose sum is σ = 139860864. Its totient is φ = 20720064.

The previous prime is 66045299. The next prime is 66045307. The reversal of 66045306 is 60354066.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66045307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323650 + ... + 323853.

It is an arithmetic number, because the mean of its divisors is an integer number (8741304).

Almost surely, 2^66045306 is an apocalyptic number.

66045306 is an abundant number, since it is smaller than the sum of its proper divisors (73815558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66045306 is a wasteful number, since it uses less digits than its factorization.

66045306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647525.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 66045306 is about 8126.8263178193. The cubic root of 66045306 is about 404.2164518306.

The spelling of 66045306 in words is "sixty-six million, forty-five thousand, three hundred six".