16721224267 has 16 divisors (see below), whose sum is σ = 18382712832. Its totient is φ = 15083713120.

The previous prime is 16721224229. The next prime is 16721224313. The reversal of 16721224267 is 76242212761.

16721224267 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16721224267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16721224207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 819888 + ... + 840034.

It is an arithmetic number, because the mean of its divisors is an integer number (1148919552).

Almost surely, 2^16721224267 is an apocalyptic number.

16721224267 is a deficient number, since it is larger than the sum of its proper divisors (1661488565).

16721224267 is a wasteful number, since it uses less digits than its factorization.

16721224267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20738.

The product of its digits is 112896, while the sum is 40.

The spelling of 16721224267 in words is "sixteen billion, seven hundred twenty-one million, two hundred twenty-four thousand, two hundred sixty-seven".