16267921718 has 16 divisors (see below), whose sum is σ = 25272082944. Its totient is φ = 7848769320.

The previous prime is 16267921699. The next prime is 16267921777. The reversal of 16267921718 is 81712976261.

It is a happy number.

16267921718 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1212080 + ... + 1225427.

It is an arithmetic number, because the mean of its divisors is an integer number (1579505184).

Almost surely, 2^16267921718 is an apocalyptic number.

16267921718 is a deficient number, since it is larger than the sum of its proper divisors (9004161226).

16267921718 is a wasteful number, since it uses less digits than its factorization.

16267921718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437627.

The product of its digits is 508032, while the sum is 50.

The spelling of 16267921718 in words is "sixteen billion, two hundred sixty-seven million, nine hundred twenty-one thousand, seven hundred eighteen".