21330200566433 has 16 divisors (see below), whose sum is σ = 23728094577792. Its totient is φ = 19009380000000.

The previous prime is 21330200566429. The next prime is 21330200566439. The reversal of 21330200566433 is 33466500203312.

It is a cyclic number.

It is not a de Polignac number, because 21330200566433 - 2² = 21330200566429 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21330200566439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14531693 + ... + 15932058.

It is an arithmetic number, because the mean of its divisors is an integer number (1483005911112).

Almost surely, 2^{21330200566433} is an apocalyptic number.

It is an amenable number.

21330200566433 is a deficient number, since it is larger than the sum of its proper divisors (2397894011359).

21330200566433 is a wasteful number, since it uses less digits than its factorization.

21330200566433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30465016.

The product of its (nonzero) digits is 233280, while the sum is 38.

Adding to 21330200566433 its reverse (33466500203312), we get a palindrome (54796700769745).

The spelling of 21330200566433 in words is "twenty-one trillion, three hundred thirty billion, two hundred million, five hundred sixty-six thousand, four hundred thirty-three".