21733327736650 has 12 divisors (see below), whose sum is σ = 40423989590262. Its totient is φ = 8693331094640.

The previous prime is 21733327736623. The next prime is 21733327736767. The reversal of 21733327736650 is 5663772333712.

It can be written as a sum of positive squares in 3 ways, for example, as 21056507255169 + 676820481481 = 4588737^2 + 822691^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21733327736591 and 21733327736600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 217333277317 + ... + 217333277416.

Almost surely, 2^{21733327736650} is an apocalyptic number.

21733327736650 is a deficient number, since it is larger than the sum of its proper divisors (18690661853612).

21733327736650 is a wasteful number, since it uses less digits than its factorization.

21733327736650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434666554745 (or 434666554740 counting only the distinct ones).

The product of its (nonzero) digits is 20003760, while the sum is 55.

The spelling of 21733327736650 in words is "twenty-one trillion, seven hundred thirty-three billion, three hundred twenty-seven million, seven hundred thirty-six thousand, six hundred fifty".