16439204244 has 24 divisors (see below), whose sum is σ = 40376993440. Its totient is φ = 5191327584.

The previous prime is 16439204237. The next prime is 16439204293. The reversal of 16439204244 is 44240293461.

It is a super-2 number, since 2×16439204244² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 36050659 + ... + 36051114.

Almost surely, 2^16439204244 is an apocalyptic number.

It is an amenable number.

16439204244 is an abundant number, since it is smaller than the sum of its proper divisors (23937789196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16439204244 is a wasteful number, since it uses less digits than its factorization.

16439204244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72101799 (or 72101797 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The spelling of 16439204244 in words is "sixteen billion, four hundred thirty-nine million, two hundred four thousand, two hundred forty-four".