16003810823 has 16 divisors (see below), whose sum is σ = 21487635456. Its totient is φ = 11511231840.

The previous prime is 16003810793. The next prime is 16003810831. The reversal of 16003810823 is 32801830061.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16003810823 - 2¹⁴ = 16003794439 is a prime.

It is a super-2 number, since 2×16003810823² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16003810823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16003810723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7992911 + ... + 7994912.

It is an arithmetic number, because the mean of its divisors is an integer number (1342977216).

Almost surely, 2^16003810823 is an apocalyptic number.

16003810823 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16003810823 is a deficient number, since it is larger than the sum of its proper divisors (5483824633).

16003810823 is a wasteful number, since it uses less digits than its factorization.

16003810823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15987854.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 16003810823 in words is "sixteen billion, three million, eight hundred ten thousand, eight hundred twenty-three".