16644411360 has 168 divisors, whose sum is σ = 58957075800. Its totient is φ = 4438478592.

The previous prime is 16644411337. The next prime is 16644411367. The reversal of 16644411360 is 6311444661.

16644411360 is a `hidden beast` number, since 1 + 6 + 644 + 4 + 1 + 1 + 3 + 6 + 0 = 666.

It is a super-3 number, since 3×16644411360³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16644411367) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 45291 + ... + 187989.

It is an arithmetic number, because the mean of its divisors is an integer number (350934975).

Almost surely, 2^16644411360 is an apocalyptic number.

16644411360 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 16644411360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29478537900).

16644411360 is an abundant number, since it is smaller than the sum of its proper divisors (42312664440).

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

16644411360 is an equidigital number, since it uses as much as digits as its factorization.

16644411360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142732 (or 142709 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 16644411360 in words is "sixteen billion, six hundred forty-four million, four hundred eleven thousand, three hundred sixty".