21612567040732 has 24 divisors (see below), whose sum is σ = 37962119529152. Its totient is φ = 10766248358400.

The previous prime is 21612567040723. The next prime is 21612567040763. The reversal of 21612567040732 is 23704076521612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112892932 + ... + 113084212.

Almost surely, 2^{21612567040732} is an apocalyptic number.

It is an amenable number.

21612567040732 is a deficient number, since it is larger than the sum of its proper divisors (16349552488420).

21612567040732 is a wasteful number, since it uses less digits than its factorization.

21612567040732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295789 (or 295787 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 21612567040732 in words is "twenty-one trillion, six hundred twelve billion, five hundred sixty-seven million, forty thousand, seven hundred thirty-two".