16445547244 has 96 divisors (see below), whose sum is σ = 37189877760. Its totient is φ = 6197990400.

The previous prime is 16445547233. The next prime is 16445547253. The reversal of 16445547244 is 44274554461.

It is a junction number, because it is equal to n+sod(n) for n = 16445547194 and 16445547203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 408709 + ... + 447139.

It is an arithmetic number, because the mean of its divisors is an integer number (387394560).

Almost surely, 2^16445547244 is an apocalyptic number.

16445547244 is a gapful number since it is divisible by the number (14) 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 16445547244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18594938880).

16445547244 is an abundant number, since it is smaller than the sum of its proper divisors (20744330516).

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

16445547244 is a wasteful number, since it uses less digits than its factorization.

16445547244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38519 (or 38517 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 46.

The spelling of 16445547244 in words is "sixteen billion, four hundred forty-five million, five hundred forty-seven thousand, two hundred forty-four".