21233455696 has 20 divisors (see below), whose sum is σ = 41143012884. Its totient is φ = 10615904000.

The previous prime is 21233455687. The next prime is 21233455723. The reversal of 21233455696 is 69655433212.

It can be written as a sum of positive squares in 2 ways, for example, as 8269356096 + 12964099600 = 90936^2 + 113860^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197676 + ... + 285556.

Almost surely, 2^21233455696 is an apocalyptic number.

It is an amenable number.

21233455696 is a deficient number, since it is larger than the sum of its proper divisors (19909557188).

21233455696 is a wasteful number, since it uses less digits than its factorization.

21233455696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102990 (or 102984 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 46.

The spelling of 21233455696 in words is "twenty-one billion, two hundred thirty-three million, four hundred fifty-five thousand, six hundred ninety-six".