655924320 has 288 divisors, whose sum is σ = 2352823200. Its totient is φ = 166182912.

The previous prime is 655924307. The next prime is 655924333. The reversal of 655924320 is 23429556.

655924320 is a `hidden beast` number, since 6 + 5 + 592 + 43 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (655924307) and next prime (655924333).

It is a tau number, because it is divible by the number of its divisors (288).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4718811 + ... + 4718949.

It is an arithmetic number, because the mean of its divisors is an integer number (8169525).

Almost surely, 2^655924320 is an apocalyptic number.

655924320 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 655924320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1176411600).

655924320 is an abundant number, since it is smaller than the sum of its proper divisors (1696898880).

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

655924320 is a wasteful number, since it uses less digits than its factorization.

655924320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 655924320 is about 25611.0195033310. The cubic root of 655924320 is about 868.8628822144.

The spelling of 655924320 in words is "six hundred fifty-five million, nine hundred twenty-four thousand, three hundred twenty".