16670725344 has 336 divisors, whose sum is σ = 60571681632. Its totient is φ = 4396114944.

The previous prime is 16670725333. The next prime is 16670725349. The reversal of 16670725344 is 44352707661.

It is a tau number, because it is divible by the number of its divisors (336).

It is a self number, because there is not a number n which added to its sum of digits gives 16670725344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16670725349) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2118922 + ... + 2126774.

It is an arithmetic number, because the mean of its divisors is an integer number (180272862).

Almost surely, 2^16670725344 is an apocalyptic number.

16670725344 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 16670725344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30285840816).

16670725344 is an abundant number, since it is smaller than the sum of its proper divisors (43900956288).

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

16670725344 is an equidigital number, since it uses as much as digits as its factorization.

16670725344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7901 (or 7878 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 16670725344 in words is "sixteen billion, six hundred seventy million, seven hundred twenty-five thousand, three hundred forty-four".