64320043246032 has 160 divisors (see below), whose sum is σ = 192919389511680. Its totient is φ = 18086188124160.

The previous prime is 64320043246027. The next prime is 64320043246049. The reversal of 64320043246032 is 23064234002346.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4359448 + ... + 12150920.

It is an arithmetic number, because the mean of its divisors is an integer number (1205746184448).

Almost surely, 2^{64320043246032} 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 64320043246032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96459694755840).

64320043246032 is an abundant number, since it is smaller than the sum of its proper divisors (128599346265648).

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

64320043246032 is a wasteful number, since it uses less digits than its factorization.

64320043246032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7791881 (or 7791875 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 39.

Adding to 64320043246032 its reverse (23064234002346), we get a palindrome (87384277248378).

The spelling of 64320043246032 in words is "sixty-four trillion, three hundred twenty billion, forty-three million, two hundred forty-six thousand, thirty-two".