4431165066 has 48 divisors (see below), whose sum is σ = 10379335200. Its totient is φ = 1361492064.

The previous prime is 4431165061. The next prime is 4431165097. The reversal of 4431165066 is 6605611344.

It is a happy number.

4431165066 is a `hidden beast` number, since 4 + 431 + 165 + 0 + 66 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4431165066.

It is not an unprimeable number, because it can be changed into a prime (4431165061) 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 23 ways as a sum of consecutive naturals, for example, 162436 + ... + 187743.

It is an arithmetic number, because the mean of its divisors is an integer number (216236150).

Almost surely, 2^4431165066 is an apocalyptic number.

4431165066 is an abundant number, since it is smaller than the sum of its proper divisors (5948170134).

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

4431165066 is a wasteful number, since it uses less digits than its factorization.

4431165066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350243 (or 350240 counting only the distinct ones).

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

The square root of 4431165066 is about 66566.9968227499. The cubic root of 4431165066 is about 1642.5022611396.

The spelling of 4431165066 in words is "four billion, four hundred thirty-one million, one hundred sixty-five thousand, sixty-six".