20350016652321 has 48 divisors (see below), whose sum is σ = 30708069125760. Its totient is φ = 12969670855680.

The previous prime is 20350016652299. The next prime is 20350016652367. The reversal of 20350016652321 is 12325661005302.

20350016652321 is a `hidden beast` number, since 2 + 0 + 3 + 50 + 0 + 1 + 66 + 523 + 21 = 666.

It is not a de Polignac number, because 20350016652321 - 2¹⁸ = 20350016390177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20350016552321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 183474801 + ... + 183585681.

It is an arithmetic number, because the mean of its divisors is an integer number (639751440120).

Almost surely, 2^{20350016652321} is an apocalyptic number.

It is an amenable number.

20350016652321 is a deficient number, since it is larger than the sum of its proper divisors (10358052473439).

20350016652321 is a wasteful number, since it uses less digits than its factorization.

20350016652321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117846 (or 117843 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 20350016652321 its reverse (12325661005302), we get a palindrome (32675677657623).

The spelling of 20350016652321 in words is "twenty trillion, three hundred fifty billion, sixteen million, six hundred fifty-two thousand, three hundred twenty-one".