21322168048 has 10 divisors (see below), whose sum is σ = 41311700624. Its totient is φ = 10661084016.

The previous prime is 21322168037. The next prime is 21322168067. The reversal of 21322168048 is 84086122312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21322167998 and 21322168016.

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, 666317736 + ... + 666317767.

Almost surely, 2^21322168048 is an apocalyptic number.

It is an amenable number.

21322168048 is a deficient number, since it is larger than the sum of its proper divisors (19989532576).

21322168048 is a wasteful number, since it uses less digits than its factorization.

21322168048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332635511 (or 1332635505 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 21322168048 in words is "twenty-one billion, three hundred twenty-two million, one hundred sixty-eight thousand, forty-eight".