655530960 has 320 divisors, whose sum is σ = 2463842304. Its totient is φ = 141004800.

The previous prime is 655530959. The next prime is 655530973. The reversal of 655530960 is 69035556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2135127 + ... + 2135433.

Almost surely, 2^655530960 is an apocalyptic number.

655530960 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 655530960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1231921152).

655530960 is an abundant number, since it is smaller than the sum of its proper divisors (1808311344).

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

655530960 is a wasteful number, since it uses less digits than its factorization.

655530960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 121500, while the sum is 39.

The square root of 655530960 is about 25603.3388447679. The cubic root of 655530960 is about 868.6891608276.

The spelling of 655530960 in words is "six hundred fifty-five million, five hundred thirty thousand, nine hundred sixty".