20003565116613 has 16 divisors (see below), whose sum is σ = 28735738065216. Its totient is φ = 12304456137600.

The previous prime is 20003565116477. The next prime is 20003565116699. The reversal of 20003565116613 is 31661156530002.

It is not a de Polignac number, because 20003565116613 - 2⁸ = 20003565116357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003565112613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113037288 + ... + 113214113.

It is an arithmetic number, because the mean of its divisors is an integer number (1795983629076).

Almost surely, 2^{20003565116613} is an apocalyptic number.

It is an amenable number.

20003565116613 is a deficient number, since it is larger than the sum of its proper divisors (8732172948603).

20003565116613 is a wasteful number, since it uses less digits than its factorization.

20003565116613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226253684.

The product of its (nonzero) digits is 97200, while the sum is 39.

The spelling of 20003565116613 in words is "twenty trillion, three billion, five hundred sixty-five million, one hundred sixteen thousand, six hundred thirteen".