650016 has 72 divisors (see below), whose sum is σ = 1929564. Its totient is φ = 207360.

The previous prime is 650011. The next prime is 650017. The reversal of 650016 is 610056.

650016 is a `hidden beast` number, since 650 + 0 + 16 = 666.

650016 is nontrivially palindromic in base 11.

It can be written as a sum of positive squares in 2 ways, for example, as 646416 + 3600 = 804^2 + 60^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (650011) by changing a digit.

650016 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10626 + ... + 10686.

2⁶⁵⁰⁰¹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (964782).

650016 is an abundant number, since it is smaller than the sum of its proper divisors (1279548).

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

650016 is a wasteful number, since it uses less digits than its factorization.

650016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 650016 is about 806.2356975476. The cubic root of 650016 is about 86.6246212886.

The spelling of 650016 in words is "six hundred fifty thousand, sixteen".