255612333660 has 96 divisors (see below), whose sum is σ = 729419281920. Its totient is φ = 66858784512.

The previous prime is 255612333649. The next prime is 255612333701. The reversal of 255612333660 is 66333216552.

It is a super-3 number, since 3×255612333660³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14565171 + ... + 14582709.

It is an arithmetic number, because the mean of its divisors is an integer number (7598117520).

Almost surely, 2^255612333660 is an apocalyptic number.

255612333660 is a gapful number since it is divisible by the number (20) 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 255612333660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364709640960).

255612333660 is an abundant number, since it is smaller than the sum of its proper divisors (473806948260).

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

255612333660 is a wasteful number, since it uses less digits than its factorization.

255612333660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22187 (or 22185 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 42.

The spelling of 255612333660 in words is "two hundred fifty-five billion, six hundred twelve million, three hundred thirty-three thousand, six hundred sixty".