43130221536 has 96 divisors (see below), whose sum is σ = 117586183680. Its totient is φ = 13832278016.

The previous prime is 43130221499. The next prime is 43130221571. The reversal of 43130221536 is 63512203134.

It is a tau number, because it is divible by the number of its divisors (96).

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, 185200 + ... + 347216.

It is an arithmetic number, because the mean of its divisors is an integer number (1224856080).

Almost surely, 2^43130221536 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 43130221536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58793091840).

43130221536 is an abundant number, since it is smaller than the sum of its proper divisors (74455962144).

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

43130221536 is a wasteful number, since it uses less digits than its factorization.

43130221536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162136 (or 162128 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 43130221536 in words is "forty-three billion, one hundred thirty million, two hundred twenty-one thousand, five hundred thirty-six".