21232407606 has 16 divisors (see below), whose sum is σ = 42499551744. Its totient is φ = 7071679784.

The previous prime is 21232407589. The next prime is 21232407613. The reversal of 21232407606 is 60670423212.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1439406 + ... + 1454081.

It is an arithmetic number, because the mean of its divisors is an integer number (2656221984).

Almost surely, 2^21232407606 is an apocalyptic number.

21232407606 is an abundant number, since it is smaller than the sum of its proper divisors (21267144138).

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

21232407606 is a wasteful number, since it uses less digits than its factorization.

21232407606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894715.

The product of its (nonzero) digits is 24192, while the sum is 33.

The spelling of 21232407606 in words is "twenty-one billion, two hundred thirty-two million, four hundred seven thousand, six hundred six".