20516410366103 has 8 divisors (see below), whose sum is σ = 20865379455360. Its totient is φ = 20167482387640.

The previous prime is 20516410366091. The next prime is 20516410366129. The reversal of 20516410366103 is 30166301461502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20516410366103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20516410366163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9270275 + ... + 11268132.

It is an arithmetic number, because the mean of its divisors is an integer number (2608172431920).

Almost surely, 2^{20516410366103} is an apocalyptic number.

20516410366103 is a deficient number, since it is larger than the sum of its proper divisors (348969089257).

20516410366103 is a wasteful number, since it uses less digits than its factorization.

20516410366103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20555397.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 20516410366103 in words is "twenty trillion, five hundred sixteen billion, four hundred ten million, three hundred sixty-six thousand, one hundred three".