21552323235232 has 24 divisors (see below), whose sum is σ = 43417906985376. Its totient is φ = 10525553207232.

The previous prime is 21552323235173. The next prime is 21552323235239. The reversal of 21552323235232 is 23253232325512.

It is a super-3 number, since 3×21552323235232³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (21552323235239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7831511428 + ... + 7831514179.

It is an arithmetic number, because the mean of its divisors is an integer number (1809079457724).

Almost surely, 2^{21552323235232} is an apocalyptic number.

It is an amenable number.

21552323235232 is an abundant number, since it is smaller than the sum of its proper divisors (21865583750144).

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

21552323235232 is a wasteful number, since it uses less digits than its factorization.

21552323235232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15663025660 (or 15663025652 counting only the distinct ones).

The product of its digits is 648000, while the sum is 40.

The spelling of 21552323235232 in words is "twenty-one trillion, five hundred fifty-two billion, three hundred twenty-three million, two hundred thirty-five thousand, two hundred thirty-two".