43238168064 has 1120 divisors, whose sum is σ = 170314932480. Its totient is φ = 10642046976.

The previous prime is 43238168063. The next prime is 43238168089. The reversal of 43238168064 is 46086183234.

43238168064 is a `hidden beast` number, since 432 + 3 + 81 + 6 + 80 + 64 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43238168063) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 645345759 + ... + 645345825.

It is an arithmetic number, because the mean of its divisors is an integer number (152066904).

Almost surely, 2^43238168064 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 43238168064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85157466240).

43238168064 is an abundant number, since it is smaller than the sum of its proper divisors (127076764416).

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

43238168064 is an equidigital number, since it uses as much as digits as its factorization.

43238168064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 43238168064 in words is "forty-three billion, two hundred thirty-eight million, one hundred sixty-eight thousand, sixty-four".