16440624842 has 8 divisors (see below), whose sum is σ = 25511314500. Its totient is φ = 7936853344.

The previous prime is 16440624821. The next prime is 16440624913. The reversal of 16440624842 is 24842604461.

16440624842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 128221²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 16440624841 + 1 = 128221^2 + 1^2 .

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

It is a super-3 number, since 3×16440624842³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16440624842.

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 3 ways as a sum of consecutive naturals, for example, 141729467 + ... + 141729582.

Almost surely, 2^16440624842 is an apocalyptic number.

16440624842 is a deficient number, since it is larger than the sum of its proper divisors (9070689658).

16440624842 is a wasteful number, since it uses less digits than its factorization.

16440624842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283459080.

The product of its (nonzero) digits is 294912, while the sum is 41.

The spelling of 16440624842 in words is "sixteen billion, four hundred forty million, six hundred twenty-four thousand, eight hundred forty-two".