655648460 has 24 divisors (see below), whose sum is σ = 1377776400. Its totient is φ = 262085184.

The previous prime is 655648439. The next prime is 655648517. The reversal of 655648460 is 64846556.

655648460 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22466 + ... + 42614.

It is an arithmetic number, because the mean of its divisors is an integer number (57407350).

Almost surely, 2^655648460 is an apocalyptic number.

It is an amenable number.

655648460 is an abundant number, since it is smaller than the sum of its proper divisors (722127940).

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

655648460 is a wasteful number, since it uses less digits than its factorization.

655648460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21785 (or 21783 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

The square root of 655648460 is about 25605.6333645548. The cubic root of 655648460 is about 868.7410601706.

The spelling of 655648460 in words is "six hundred fifty-five million, six hundred forty-eight thousand, four hundred sixty".