15882266448 has 120 divisors (see below), whose sum is σ = 45187632360. Its totient is φ = 5206671360.

The previous prime is 15882266443. The next prime is 15882266467. The reversal of 15882266448 is 84466228851.

It can be written as a sum of positive squares in 4 ways, for example, as 9290304 + 15872976144 = 3048^2 + 125988^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15882266394 and 15882266403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15882266441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2470278 + ... + 2476698.

It is an arithmetic number, because the mean of its divisors is an integer number (376563603).

Almost surely, 2^15882266448 is an apocalyptic number.

15882266448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15882266448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22593816180).

15882266448 is an abundant number, since it is smaller than the sum of its proper divisors (29305365912).

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

15882266448 is a wasteful number, since it uses less digits than its factorization.

15882266448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6717 (or 6708 counting only the distinct ones).

The product of its digits is 5898240, while the sum is 54.

It can be divided in two parts, 1588 and 2266448, that added together give a square (2268036 = 1506²).

The spelling of 15882266448 in words is "fifteen billion, eight hundred eighty-two million, two hundred sixty-six thousand, four hundred forty-eight".