4324385664 has 128 divisors (see below), whose sum is σ = 13318099200. Its totient is φ = 1378764288.

The previous prime is 4324385651. The next prime is 4324385671. The reversal of 4324385664 is 4665834234.

4324385664 is a `hidden beast` number, since 43 + 2 + 43 + 8 + 566 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×4324385664² = 37400622742017441792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52287 + ... + 106689.

It is an arithmetic number, because the mean of its divisors is an integer number (104047650).

Almost surely, 2^4324385664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4324385664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6659049600).

4324385664 is an abundant number, since it is smaller than the sum of its proper divisors (8993713536).

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

4324385664 is a wasteful number, since it uses less digits than its factorization.

4324385664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54449 (or 54431 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 45.

The square root of 4324385664 is about 65760.0613138400. The cubic root of 4324385664 is about 1629.2015189107.

The spelling of 4324385664 in words is "four billion, three hundred twenty-four million, three hundred eighty-five thousand, six hundred sixty-four".