655450560 has 168 divisors, whose sum is σ = 2315785056. Its totient is φ = 170035200.

The previous prime is 655450541. The next prime is 655450561. The reversal of 655450560 is 65054556.

It is a happy number.

655450560 is a `hidden beast` number, since 6 + 55 + 45 + 0 + 560 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655450561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103485 + ... + 109635.

Almost surely, 2^655450560 is an apocalyptic number.

655450560 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 655450560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1157892528).

655450560 is an abundant number, since it is smaller than the sum of its proper divisors (1660334496).

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

655450560 is a wasteful number, since it uses less digits than its factorization.

655450560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6211 (or 6198 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The square root of 655450560 is about 25601.7686889012. The cubic root of 655450560 is about 868.6536448523.

The spelling of 655450560 in words is "six hundred fifty-five million, four hundred fifty thousand, five hundred sixty".