16387210418 has 16 divisors (see below), whose sum is σ = 26161610040. Its totient is φ = 7671668736.

The previous prime is 16387210387. The next prime is 16387210487. The reversal of 16387210418 is 81401278361.

16387210418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13026341689 + 3360868729 = 114133^2 + 57973^2 .

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, 1242083 + ... + 1255206.

Almost surely, 2^16387210418 is an apocalyptic number.

16387210418 is a deficient number, since it is larger than the sum of its proper divisors (9774399622).

16387210418 is a wasteful number, since it uses less digits than its factorization.

16387210418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497501.

The product of its (nonzero) digits is 64512, while the sum is 41.

Adding to 16387210418 its reverse (81401278361), we get a palindrome (97788488779).

The spelling of 16387210418 in words is "sixteen billion, three hundred eighty-seven million, two hundred ten thousand, four hundred eighteen".