16448777472 has 36 divisors (see below), whose sum is σ = 43777737920. Its totient is φ = 5482925568.

The previous prime is 16448777441. The next prime is 16448777479. The reversal of 16448777472 is 27477784461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16448777479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10708072 + ... + 10709607.

Almost surely, 2^16448777472 is an apocalyptic number.

16448777472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16448777472 is an abundant number, since it is smaller than the sum of its proper divisors (27328960448).

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

16448777472 is an equidigital number, since it uses as much as digits as its factorization.

16448777472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21417698 (or 21417684 counting only the distinct ones).

The product of its digits is 14751744, while the sum is 57.

The spelling of 16448777472 in words is "sixteen billion, four hundred forty-eight million, seven hundred seventy-seven thousand, four hundred seventy-two".