16539346438 has 8 divisors (see below), whose sum is σ = 24809574888. Its totient is φ = 8269488144.

The previous prime is 16539346433. The next prime is 16539346463. The reversal of 16539346438 is 83464393561.

It is a happy number.

16539346438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16539346433) 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 3 ways as a sum of consecutive naturals, for example, 95970 + ... + 205642.

It is an arithmetic number, because the mean of its divisors is an integer number (3101196861).

Almost surely, 2^16539346438 is an apocalyptic number.

16539346438 is a deficient number, since it is larger than the sum of its proper divisors (8270228450).

16539346438 is a wasteful number, since it uses less digits than its factorization.

16539346438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185078.

The product of its digits is 5598720, while the sum is 52.

The spelling of 16539346438 in words is "sixteen billion, five hundred thirty-nine million, three hundred forty-six thousand, four hundred thirty-eight".