16823111803 has 16 divisors (see below), whose sum is σ = 18155934720. Its totient is φ = 15537678336.

The previous prime is 16823111797. The next prime is 16823111873. The reversal of 16823111803 is 30811132861.

It is a happy number.

It is not a de Polignac number, because 16823111803 - 2¹⁷ = 16822980731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16823111873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192850 + ... + 266152.

It is an arithmetic number, because the mean of its divisors is an integer number (1134745920).

Almost surely, 2^16823111803 is an apocalyptic number.

16823111803 is a deficient number, since it is larger than the sum of its proper divisors (1332822917).

16823111803 is a wasteful number, since it uses less digits than its factorization.

16823111803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73626.

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 16823111803 in words is "sixteen billion, eight hundred twenty-three million, one hundred eleven thousand, eight hundred three".