4065720008 has 32 divisors (see below), whose sum is σ = 8714366400. Its totient is φ = 1742029632.

The previous prime is 4065719993. The next prime is 4065720011. The reversal of 4065720008 is 8000275604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366203 + ... + 377141.

It is an arithmetic number, because the mean of its divisors is an integer number (272323950).

Almost surely, 2^4065720008 is an apocalyptic number.

It is an amenable number.

4065720008 is an abundant number, since it is smaller than the sum of its proper divisors (4648646392).

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

4065720008 is a wasteful number, since it uses less digits than its factorization.

4065720008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17589 (or 17585 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 4065720008 is about 63762.9987375123. The cubic root of 4065720008 is about 1596.0475370208.

The spelling of 4065720008 in words is "four billion, sixty-five million, seven hundred twenty thousand, eight".