16620103345543 has 8 divisors (see below), whose sum is σ = 16734727535936. Its totient is φ = 16505871033600.

The previous prime is 16620103345399. The next prime is 16620103345567. The reversal of 16620103345543 is 34554330102661.

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-16620103345543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16620103345543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16620103345243) 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, 97884498 + ... + 98054143.

It is an arithmetic number, because the mean of its divisors is an integer number (2091840941992).

Almost surely, 2^{16620103345543} is an apocalyptic number.

16620103345543 is a deficient number, since it is larger than the sum of its proper divisors (114624190393).

16620103345543 is a wasteful number, since it uses less digits than its factorization.

16620103345543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195939225.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 16620103345543 in words is "sixteen trillion, six hundred twenty billion, one hundred three million, three hundred forty-five thousand, five hundred forty-three".