16003864223 has 4 divisors (see below), whose sum is σ = 16555721640. Its totient is φ = 15452006808.

The previous prime is 16003864213. The next prime is 16003864229. The reversal of 16003864223 is 32246830061.

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

It is a cyclic number.

It is not a de Polignac number, because 16003864223 - 2⁴ = 16003864207 is a prime.

It is a super-2 number, since 2×16003864223² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16003864229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275928665 + ... + 275928722.

It is an arithmetic number, because the mean of its divisors is an integer number (4138930410).

Almost surely, 2^16003864223 is an apocalyptic number.

16003864223 is a deficient number, since it is larger than the sum of its proper divisors (551857417).

16003864223 is an equidigital number, since it uses as much as digits as its factorization.

16003864223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551857416.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 16003864223 in words is "sixteen billion, three million, eight hundred sixty-four thousand, two hundred twenty-three".