650261660 has 48 divisors (see below), whose sum is σ = 1383782400. Its totient is φ = 256651584.

The previous prime is 650261659. The next prime is 650261671. The reversal of 650261660 is 66162056.

650261660 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 986411 + ... + 987069.

It is an arithmetic number, because the mean of its divisors is an integer number (28828800).

Almost surely, 2^650261660 is an apocalyptic number.

It is an amenable number.

650261660 is an abundant number, since it is smaller than the sum of its proper divisors (733520740).

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

650261660 is a wasteful number, since it uses less digits than its factorization.

650261660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250 (or 1248 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 650261660 is about 25500.2286264261. The cubic root of 650261660 is about 866.3553257085.

The spelling of 650261660 in words is "six hundred fifty million, two hundred sixty-one thousand, six hundred sixty".