4066512066 has 64 divisors (see below), whose sum is σ = 9396000000. Its totient is φ = 1302086016.

The previous prime is 4066512029. The next prime is 4066512067. The reversal of 4066512066 is 6602156604.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4066512066.

It is not an unprimeable number, because it can be changed into a prime (4066512067) 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 31 ways as a sum of consecutive naturals, for example, 305110 + ... + 318158.

It is an arithmetic number, because the mean of its divisors is an integer number (146812500).

Almost surely, 2^4066512066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4066512066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4698000000).

4066512066 is an abundant number, since it is smaller than the sum of its proper divisors (5329487934).

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

4066512066 is a wasteful number, since it uses less digits than its factorization.

4066512066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13288 (or 13282 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 4066512066 is about 63769.2093882306. The cubic root of 4066512066 is about 1596.1511742720.

The spelling of 4066512066 in words is "four billion, sixty-six million, five hundred twelve thousand, sixty-six".