20003513164136 has 16 divisors (see below), whose sum is σ = 37641990028740. Its totient is φ = 9965649156480.

The previous prime is 20003513164097. The next prime is 20003513164147. The reversal of 20003513164136 is 63146131530002.

It can be written as a sum of positive squares in 2 ways, for example, as 17135211880900 + 2868301283236 = 4139470^2 + 1693606^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20003513164096 and 20003513164105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4513425845 + ... + 4513430276.

Almost surely, 2^{20003513164136} is an apocalyptic number.

It is an amenable number.

20003513164136 is a deficient number, since it is larger than the sum of its proper divisors (17638476864604).

20003513164136 is a wasteful number, since it uses less digits than its factorization.

20003513164136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9026856404 (or 9026856400 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

Adding to 20003513164136 its reverse (63146131530002), we get a palindrome (83149644694138).

The spelling of 20003513164136 in words is "twenty trillion, three billion, five hundred thirteen million, one hundred sixty-four thousand, one hundred thirty-six".