16450544128 has 40 divisors (see below), whose sum is σ = 34598923920. Its totient is φ = 7792358400.

The previous prime is 16450544113. The next prime is 16450544153. The reversal of 16450544128 is 82144505461.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 835798 + ... + 855253.

It is an arithmetic number, because the mean of its divisors is an integer number (864973098).

Almost surely, 2^16450544128 is an apocalyptic number.

It is an amenable number.

16450544128 is an abundant number, since it is smaller than the sum of its proper divisors (18148379792).

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

16450544128 is an equidigital number, since it uses as much as digits as its factorization.

16450544128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691088 (or 1691072 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The spelling of 16450544128 in words is "sixteen billion, four hundred fifty million, five hundred forty-four thousand, one hundred twenty-eight".