16788994803 has 72 divisors (see below), whose sum is σ = 28749033456. Its totient is φ = 9411292800.

The previous prime is 16788994763. The next prime is 16788994813. The reversal of 16788994803 is 30849988761.

16788994803 is a `hidden beast` number, since 1 + 6 + 78 + 89 + 9 + 480 + 3 = 666.

It is not a de Polignac number, because 16788994803 - 2¹⁰ = 16788993779 is a prime.

It is a super-2 number, since 2×16788994803² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (16788994813) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 15359925 + ... + 15361017.

Almost surely, 2^16788994803 is an apocalyptic number.

16788994803 is a deficient number, since it is larger than the sum of its proper divisors (11960038653).

16788994803 is a wasteful number, since it uses less digits than its factorization.

16788994803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745 (or 1735 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 16788994803 in words is "sixteen billion, seven hundred eighty-eight million, nine hundred ninety-four thousand, eight hundred three".