16444454250 has 256 divisors, whose sum is σ = 48404708352. Its totient is φ = 3640320000.

The previous prime is 16444454227. The next prime is 16444454251. The reversal of 16444454250 is 5245444461.

It is a junction number, because it is equal to n+sod(n) for n = 16444454199 and 16444454208.

It is not an unprimeable number, because it can be changed into a prime (16444454251) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 51875092 + ... + 51875408.

It is an arithmetic number, because the mean of its divisors is an integer number (189080892).

Almost surely, 2^16444454250 is an apocalyptic number.

16444454250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16444454250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24202354176).

16444454250 is an abundant number, since it is smaller than the sum of its proper divisors (31960254102).

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

16444454250 is a wasteful number, since it uses less digits than its factorization.

16444454250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 39.

The spelling of 16444454250 in words is "sixteen billion, four hundred forty-four million, four hundred fifty-four thousand, two hundred fifty".