20003513164473 has 8 divisors (see below), whose sum is σ = 28240253879328. Its totient is φ = 12551223946304.

The previous prime is 20003513164463. The next prime is 20003513164511. The reversal of 20003513164473 is 37446131530002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20003513164473 - 2⁴ = 20003513164457 is a prime.

It is a super-2 number, since 2×20003513164473² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20003513164463) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 196112874111 + ... + 196112874212.

It is an arithmetic number, because the mean of its divisors is an integer number (3530031734916).

Almost surely, 2^{20003513164473} is an apocalyptic number.

It is an amenable number.

20003513164473 is a deficient number, since it is larger than the sum of its proper divisors (8236740714855).

20003513164473 is a wasteful number, since it uses less digits than its factorization.

20003513164473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392225748343.

The product of its (nonzero) digits is 181440, while the sum is 39.

Adding to 20003513164473 its reverse (37446131530002), we get a palindrome (57449644694475).

The spelling of 20003513164473 in words is "twenty trillion, three billion, five hundred thirteen million, one hundred sixty-four thousand, four hundred seventy-three".