16448808915 has 640 divisors, whose sum is σ = 43356487680. Its totient is φ = 5748019200.

The previous prime is 16448808841. The next prime is 16448808919. The reversal of 16448808915 is 51980884461.

It is a happy number.

It is not a de Polignac number, because 16448808915 - 2⁹ = 16448808403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16448808919) by changing a digit.

It is a polite number, since it can be written in 639 ways as a sum of consecutive naturals, for example, 231673330 + ... + 231673400.

It is an arithmetic number, because the mean of its divisors is an integer number (67744512).

Almost surely, 2^16448808915 is an apocalyptic number.

16448808915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16448808915 is an abundant number, since it is smaller than the sum of its proper divisors (26907678765).

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

16448808915 is a wasteful number, since it uses less digits than its factorization.

16448808915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 54.

The spelling of 16448808915 in words is "sixteen billion, four hundred forty-eight million, eight hundred eight thousand, nine hundred fifteen".