650403660 has 96 divisors (see below), whose sum is σ = 1911651840. Its totient is φ = 164910592.

The previous prime is 650403643. The next prime is 650403679. The reversal of 650403660 is 66304056.

650403660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 245704 + ... + 248336.

It is an arithmetic number, because the mean of its divisors is an integer number (19913040).

Almost surely, 2^650403660 is an apocalyptic number.

650403660 is a gapful number since it is divisible by the number (60) 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 650403660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (955825920).

650403660 is an abundant number, since it is smaller than the sum of its proper divisors (1261248180).

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

650403660 is a wasteful number, since it uses less digits than its factorization.

650403660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847 (or 2845 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 650403660 is about 25503.0127632011. The cubic root of 650403660 is about 866.4183841714.

The spelling of 650403660 in words is "six hundred fifty million, four hundred three thousand, six hundred sixty".