20003345700165 has 24 divisors (see below), whose sum is σ = 35868068154360. Its totient is φ = 10300573417344.

The previous prime is 20003345700089. The next prime is 20003345700181. The reversal of 20003345700165 is 56100754330002.

20003345700165 is a `hidden beast` number, since 20 + 0 + 0 + 3 + 3 + 4 + 570 + 0 + 1 + 65 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 164525961924 + 19838819738241 = 405618^2 + 4454079^2 .

It is not a de Polignac number, because 20003345700165 - 2⁹ = 20003345699653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7664115822 + ... + 7664118431.

It is an arithmetic number, because the mean of its divisors is an integer number (1494502839765).

Almost surely, 2^{20003345700165} is an apocalyptic number.

It is an amenable number.

20003345700165 is a deficient number, since it is larger than the sum of its proper divisors (15864722454195).

20003345700165 is a wasteful number, since it uses less digits than its factorization.

20003345700165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15328234293 (or 15328234290 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The spelling of 20003345700165 in words is "twenty trillion, three billion, three hundred forty-five million, seven hundred thousand, one hundred sixty-five".