659406560 has 24 divisors (see below), whose sum is σ = 1557848376. Its totient is φ = 263762560.

The previous prime is 659406551. The next prime is 659406577. The reversal of 659406560 is 65604956.

It is a super-2 number, since 2×659406560² = 869634022742067200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2060486 + ... + 2060805.

It is an arithmetic number, because the mean of its divisors is an integer number (64910349).

Almost surely, 2^659406560 is an apocalyptic number.

It is an amenable number.

659406560 is an abundant number, since it is smaller than the sum of its proper divisors (898441816).

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

659406560 is a wasteful number, since it uses less digits than its factorization.

659406560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4121306 (or 4121298 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 659406560 is about 25678.9127495694. The cubic root of 659406560 is about 870.3977394828.

The spelling of 659406560 in words is "six hundred fifty-nine million, four hundred six thousand, five hundred sixty".