16650144 has 96 divisors (see below), whose sum is σ = 55520640. Its totient is φ = 4755456.

The previous prime is 16650143. The next prime is 16650167. The reversal of 16650144 is 44105661.

16650144 is a `hidden beast` number, since 1 + 6 + 650 + 1 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (16650143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4672 + ... + 7424.

It is an arithmetic number, because the mean of its divisors is an integer number (578340).

Almost surely, 2^16650144 is an apocalyptic number.

16650144 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 16650144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27760320).

16650144 is an abundant number, since it is smaller than the sum of its proper divisors (38870496).

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

16650144 is a wasteful number, since it uses less digits than its factorization.

16650144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779 (or 2765 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 16650144 is about 4080.4587977334. The cubic root of 16650144 is about 255.3520397202.

The spelling of 16650144 in words is "sixteen million, six hundred fifty thousand, one hundred forty-four".