21338416696 has 16 divisors (see below), whose sum is σ = 40011476400. Its totient is φ = 10668689664.

The previous prime is 21338416691. The next prime is 21338416703. The reversal of 21338416696 is 69661483312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21338416691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153096 + ... + 257128.

It is an arithmetic number, because the mean of its divisors is an integer number (2500717275).

Almost surely, 2^21338416696 is an apocalyptic number.

It is an amenable number.

21338416696 is a deficient number, since it is larger than the sum of its proper divisors (18673059704).

21338416696 is a wasteful number, since it uses less digits than its factorization.

21338416696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129678 (or 129674 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 49.

The spelling of 21338416696 in words is "twenty-one billion, three hundred thirty-eight million, four hundred sixteen thousand, six hundred ninety-six".