16438104016 has 20 divisors (see below), whose sum is σ = 32059750624. Its totient is φ = 8164620000.

The previous prime is 16438103993. The next prime is 16438104019. The reversal of 16438104016 is 61040183461.

It is a super-2 number, since 2×16438104016² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16438104019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3399510 + ... + 3404341.

Almost surely, 2^16438104016 is an apocalyptic number.

16438104016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16438104016 is a deficient number, since it is larger than the sum of its proper divisors (15621646608).

16438104016 is a wasteful number, since it uses less digits than its factorization.

16438104016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6804010 (or 6804004 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

Adding to 16438104016 its reverse (61040183461), we get a palindrome (77478287477).

The spelling of 16438104016 in words is "sixteen billion, four hundred thirty-eight million, one hundred four thousand, sixteen".