21600100432 has 10 divisors (see below), whose sum is σ = 41850194618. Its totient is φ = 10800050208.

The previous prime is 21600100411. The next prime is 21600100471. The reversal of 21600100432 is 23400100612.

It can be written as a sum of positive squares in only one way, i.e., 20568149056 + 1031951376 = 143416^2 + 32124^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675003123 + ... + 675003154.

Almost surely, 2^21600100432 is an apocalyptic number.

It is an amenable number.

21600100432 is a deficient number, since it is larger than the sum of its proper divisors (20250094186).

21600100432 is a wasteful number, since it uses less digits than its factorization.

21600100432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350006285 (or 1350006279 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The spelling of 21600100432 in words is "twenty-one billion, six hundred million, one hundred thousand, four hundred thirty-two".