21500003330532 has 36 divisors (see below), whose sum is σ = 54349042116096. Its totient is φ = 7166428901040.

The previous prime is 21500003330503. The next prime is 21500003330551. The reversal of 21500003330532 is 23503330000512.

21500003330532 is a `hidden beast` number, since 21 + 50 + 0 + 0 + 0 + 33 + 30 + 532 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 21500003330496 and 21500003330505.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8856444 + ... + 11019827.

It is an arithmetic number, because the mean of its divisors is an integer number (1509695614336).

Almost surely, 2^{21500003330532} is an apocalyptic number.

It is an amenable number.

21500003330532 is an abundant number, since it is smaller than the sum of its proper divisors (32849038785564).

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

21500003330532 is a wasteful number, since it uses less digits than its factorization.

21500003330532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19906328 (or 19906323 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 27.

The spelling of 21500003330532 in words is "twenty-one trillion, five hundred billion, three million, three hundred thirty thousand, five hundred thirty-two".