4066145220 has 48 divisors (see below), whose sum is σ = 11398605120. Its totient is φ = 1083029376.

The previous prime is 4066145203. The next prime is 4066145249. The reversal of 4066145220 is 225416604.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 12094 + ... + 90986.

It is an arithmetic number, because the mean of its divisors is an integer number (237470940).

Almost surely, 2^4066145220 is an apocalyptic number.

It is an amenable number.

4066145220 is an abundant number, since it is smaller than the sum of its proper divisors (7332459900).

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

4066145220 is a wasteful number, since it uses less digits than its factorization.

4066145220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79764 (or 79762 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 4066145220 is about 63766.3329665428. The cubic root of 4066145220 is about 1596.1031757848.

The spelling of 4066145220 in words is "four billion, sixty-six million, one hundred forty-five thousand, two hundred twenty".