655360560 has 120 divisors (see below), whose sum is σ = 2276885520. Its totient is φ = 168731136.

The previous prime is 655360507. The next prime is 655360579. The reversal of 655360560 is 65063556.

It is a happy number.

655360560 is a `hidden beast` number, since 65 + 5 + 36 + 0 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5187 + ... + 36573.

It is an arithmetic number, because the mean of its divisors is an integer number (18974046).

Almost surely, 2^655360560 is an apocalyptic number.

655360560 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 655360560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1138442760).

655360560 is an abundant number, since it is smaller than the sum of its proper divisors (1621524960).

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

655360560 is a wasteful number, since it uses less digits than its factorization.

655360560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31435 (or 31426 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 655360560 is about 25600.0109374977. The cubic root of 655360560 is about 868.6138847182.

The spelling of 655360560 in words is "six hundred fifty-five million, three hundred sixty thousand, five hundred sixty".