16452220438 has 8 divisors (see below), whose sum is σ = 24680974032. Its totient is φ = 8225229096.

The previous prime is 16452220363. The next prime is 16452220483. The reversal of 16452220438 is 83402225461.

16452220438 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 junction number, because it is equal to n+sod(n) for n = 16452220397 and 16452220406.

It is a congruent number.

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, 416970 + ... + 454717.

It is an arithmetic number, because the mean of its divisors is an integer number (3085121754).

Almost surely, 2^16452220438 is an apocalyptic number.

16452220438 is a deficient number, since it is larger than the sum of its proper divisors (8228753594).

16452220438 is an equidigital number, since it uses as much as digits as its factorization.

16452220438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881126.

The product of its (nonzero) digits is 92160, while the sum is 37.

Adding to 16452220438 its reverse (83402225461), we get a palindrome (99854445899).

The spelling of 16452220438 in words is "sixteen billion, four hundred fifty-two million, two hundred twenty thousand, four hundred thirty-eight".