655336241280 has 1792 divisors, whose sum is σ = 2889717120000. Its totient is φ = 138722844672.

The previous prime is 655336241257. The next prime is 655336241293. The reversal of 655336241280 is 82142633556.

655336241280 is a `hidden beast` number, since 6 + 5 + 5 + 3 + 3 + 624 + 12 + 8 + 0 = 666.

It is a super-3 number, since 3×655336241280³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 3661096231 + ... + 3661096409.

Almost surely, 2^655336241280 is an apocalyptic number.

655336241280 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 655336241280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1444858560000).

655336241280 is an abundant number, since it is smaller than the sum of its proper divisors (2234380878720).

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

655336241280 is a wasteful number, since it uses less digits than its factorization.

655336241280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 655336241280 in words is "six hundred fifty-five billion, three hundred thirty-six million, two hundred forty-one thousand, two hundred eighty".