16005344512 has 36 divisors (see below), whose sum is σ = 33337231200. Its totient is φ = 7654727168.

The previous prime is 16005344473. The next prime is 16005344567. The reversal of 16005344512 is 21544350061.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353262 + ... + 1365037.

It is an arithmetic number, because the mean of its divisors is an integer number (926034200).

Almost surely, 2^16005344512 is an apocalyptic number.

It is an amenable number.

16005344512 is an abundant number, since it is smaller than the sum of its proper divisors (17331886688).

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

16005344512 is an equidigital number, since it uses as much as digits as its factorization.

16005344512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718338 (or 2718324 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 16005344512 its reverse (21544350061), we get a palindrome (37549694573).

The spelling of 16005344512 in words is "sixteen billion, five million, three hundred forty-four thousand, five hundred twelve".