650066808 has 64 divisors (see below), whose sum is σ = 1762780320. Its totient is φ = 198963200.

The previous prime is 650066803. The next prime is 650066839. The reversal of 650066808 is 808660056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650066803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2703 + ... + 36158.

Almost surely, 2^650066808 is an apocalyptic number.

650066808 is a gapful number since it is divisible by the number (68) 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 650066808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (881390160).

650066808 is an abundant number, since it is smaller than the sum of its proper divisors (1112713512).

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

650066808 is a wasteful number, since it uses less digits than its factorization.

650066808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38928 (or 38924 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 650066808 is about 25496.4077469749. The cubic root of 650066808 is about 866.2687821202.

The spelling of 650066808 in words is "six hundred fifty million, sixty-six thousand, eight hundred eight".