655170560 has 88 divisors (see below), whose sum is σ = 1714665456. Its totient is φ = 238223360.

The previous prime is 655170541. The next prime is 655170589. The reversal of 655170560 is 65071556.

It is a tau number, because it is divible by the number of its divisors (88).

It is a self number, because there is not a number n which added to its sum of digits gives 655170560.

It is a congruent number.

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, 50504 + ... + 62136.

Almost surely, 2^655170560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655170560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (857332728).

655170560 is an abundant number, since it is smaller than the sum of its proper divisors (1059494896).

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

655170560 is a wasteful number, since it uses less digits than its factorization.

655170560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11669 (or 11651 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 655170560 is about 25596.2997325785. The cubic root of 655170560 is about 868.5299347016.

The spelling of 655170560 in words is "six hundred fifty-five million, one hundred seventy thousand, five hundred sixty".