43221536652 has 48 divisors (see below), whose sum is σ = 115436824832. Its totient is φ = 12329789760.

The previous prime is 43221536651. The next prime is 43221536669. The reversal of 43221536652 is 25663512234.

It is a self number, because there is not a number n which added to its sum of digits gives 43221536652.

It is not an unprimeable number, because it can be changed into a prime (43221536651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346099 + ... + 454122.

Almost surely, 2^43221536652 is an apocalyptic number.

43221536652 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

43221536652 is an abundant number, since it is smaller than the sum of its proper divisors (72215288180).

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

43221536652 is a wasteful number, since it uses less digits than its factorization.

43221536652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800878 (or 800876 counting only the distinct ones).

The product of its digits is 259200, while the sum is 39.

The spelling of 43221536652 in words is "forty-three billion, two hundred twenty-one million, five hundred thirty-six thousand, six hundred fifty-two".