4064640168 has 32 divisors (see below), whose sum is σ = 10163800800. Its totient is φ = 1354586688.

The previous prime is 4064640161. The next prime is 4064640199. The reversal of 4064640168 is 8610464604.

4064640168 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (4064640161) 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, 114430 + ... + 145682.

It is an arithmetic number, because the mean of its divisors is an integer number (317618775).

Almost surely, 2^4064640168 is an apocalyptic number.

It is an amenable number.

4064640168 is an abundant number, since it is smaller than the sum of its proper divisors (6099160632).

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

4064640168 is a wasteful number, since it uses less digits than its factorization.

4064640168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36681 (or 36677 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 4064640168 is about 63754.5305684231. The cubic root of 4064640168 is about 1595.9062230941.

The spelling of 4064640168 in words is "four billion, sixty-four million, six hundred forty thousand, one hundred sixty-eight".