16655484678803 has 4 divisors (see below), whose sum is σ = 16678976195280. Its totient is φ = 16631993162328.

The previous prime is 16655484678797. The next prime is 16655484678809. The reversal of 16655484678803 is 30887648455661.

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

It is an interprime number because it is at equal distance from previous prime (16655484678797) and next prime (16655484678809).

It is a cyclic number.

It is not a de Polignac number, because 16655484678803 - 2⁴ = 16655484678787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16655484678809) 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, 11745757175 + ... + 11745758592.

It is an arithmetic number, because the mean of its divisors is an integer number (4169744048820).

Almost surely, 2^{16655484678803} is an apocalyptic number.

16655484678803 is a deficient number, since it is larger than the sum of its proper divisors (23491516477).

16655484678803 is an equidigital number, since it uses as much as digits as its factorization.

16655484678803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23491516476.

The product of its (nonzero) digits is 928972800, while the sum is 71.

The spelling of 16655484678803 in words is "sixteen trillion, six hundred fifty-five billion, four hundred eighty-four million, six hundred seventy-eight thousand, eight hundred three".