16555220343163 has 4 divisors (see below), whose sum is σ = 16560166632840. Its totient is φ = 16550274053488.

The previous prime is 16555220343143. The next prime is 16555220343191. The reversal of 16555220343163 is 36134302255561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16555220343163 is a prime.

It is a super-2 number, since 2×16555220343163² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16555220343143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2473139818 + ... + 2473146511.

It is an arithmetic number, because the mean of its divisors is an integer number (4140041658210).

Almost surely, 2^{16555220343163} is an apocalyptic number.

16555220343163 is a deficient number, since it is larger than the sum of its proper divisors (4946289677).

16555220343163 is an equidigital number, since it uses as much as digits as its factorization.

16555220343163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4946289676.

The product of its (nonzero) digits is 1944000, while the sum is 46.

The spelling of 16555220343163 in words is "sixteen trillion, five hundred fifty-five billion, two hundred twenty million, three hundred forty-three thousand, one hundred sixty-three".