16441649280 has 768 divisors, whose sum is σ = 69770937600. Its totient is φ = 3494412288.

The previous prime is 16441649261. The next prime is 16441649293. The reversal of 16441649280 is 8294614461.

It is a super-3 number, since 3×16441649280³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 198092119 + ... + 198092201.

It is an arithmetic number, because the mean of its divisors is an integer number (90847575).

Almost surely, 2^16441649280 is an apocalyptic number.

16441649280 is a gapful number since it is divisible by the number (10) 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 16441649280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34885468800).

16441649280 is an abundant number, since it is smaller than the sum of its proper divisors (53329288320).

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

16441649280 is an equidigital number, since it uses as much as digits as its factorization.

16441649280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 16441649280 in words is "sixteen billion, four hundred forty-one million, six hundred forty-nine thousand, two hundred eighty".