656051660 has 48 divisors (see below), whose sum is σ = 1539633312. Its totient is φ = 232742400.

The previous prime is 656051633. The next prime is 656051677. The reversal of 656051660 is 66150656.

656051660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 656051660.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27347 + ... + 45386.

It is an arithmetic number, because the mean of its divisors is an integer number (32075694).

Almost surely, 2^656051660 is an apocalyptic number.

It is an amenable number.

656051660 is an abundant number, since it is smaller than the sum of its proper divisors (883581652).

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

656051660 is a wasteful number, since it uses less digits than its factorization.

656051660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72794 (or 72792 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 656051660 is about 25613.5054219449. The cubic root of 656051660 is about 868.9191050828.

The spelling of 656051660 in words is "six hundred fifty-six million, fifty-one thousand, six hundred sixty".