16794555563 has 8 divisors (see below), whose sum is σ = 17968291920. Its totient is φ = 15649800480.

The previous prime is 16794555523. The next prime is 16794555593. The reversal of 16794555563 is 36555549761.

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

It is a cyclic number.

It is not a de Polignac number, because 16794555563 - 2⁸ = 16794555307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16794555499 and 16794555508.

It is not an unprimeable number, because it can be changed into a prime (16794555523) 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, 7244120 + ... + 7246437.

It is an arithmetic number, because the mean of its divisors is an integer number (2246036490).

Almost surely, 2^16794555563 is an apocalyptic number.

16794555563 is a deficient number, since it is larger than the sum of its proper divisors (1173736357).

16794555563 is a wasteful number, since it uses less digits than its factorization.

16794555563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14490637.

The product of its digits is 17010000, while the sum is 56.

The spelling of 16794555563 in words is "sixteen billion, seven hundred ninety-four million, five hundred fifty-five thousand, five hundred sixty-three".