20350016652265 has 32 divisors (see below), whose sum is σ = 24964648160256. Its totient is φ = 15920221282560.

The previous prime is 20350016652223. The next prime is 20350016652283. The reversal of 20350016652265 is 56225661005302.

It is not a de Polignac number, because 20350016652265 - 2¹⁹ = 20350016127977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51289734 + ... + 51684976.

It is an arithmetic number, because the mean of its divisors is an integer number (780145255008).

Almost surely, 2^{20350016652265} is an apocalyptic number.

It is an amenable number.

20350016652265 is a deficient number, since it is larger than the sum of its proper divisors (4614631507991).

20350016652265 is a wasteful number, since it uses less digits than its factorization.

20350016652265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396289.

The product of its (nonzero) digits is 648000, while the sum is 43.

Adding to 20350016652265 its reverse (56225661005302), we get a palindrome (76575677657567).

The spelling of 20350016652265 in words is "twenty trillion, three hundred fifty billion, sixteen million, six hundred fifty-two thousand, two hundred sixty-five".