650541666 has 8 divisors (see below), whose sum is σ = 1301083344. Its totient is φ = 216847220.

The previous prime is 650541643. The next prime is 650541701. The reversal of 650541666 is 666145056.

650541666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

650541666 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54211800 + ... + 54211811.

It is an arithmetic number, because the mean of its divisors is an integer number (162635418).

Almost surely, 2^650541666 is an apocalyptic number.

650541666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

650541666 is a wasteful number, since it uses less digits than its factorization.

650541666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108423616.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 650541666 is about 25505.7183000205. The cubic root of 650541666 is about 866.4796602101.

The spelling of 650541666 in words is "six hundred fifty million, five hundred forty-one thousand, six hundred sixty-six".