255866922360 has 512 divisors, whose sum is σ = 992155392000. Its totient is φ = 57447346176.

The previous prime is 255866922343. The next prime is 255866922373. The reversal of 255866922360 is 63229668552.

255866922360 is a `hidden beast` number, since 2 + 5 + 586 + 6 + 9 + 22 + 36 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 255866922297 and 255866922306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 109671754 + ... + 109674086.

It is an arithmetic number, because the mean of its divisors is an integer number (1937803500).

Almost surely, 2^255866922360 is an apocalyptic number.

255866922360 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 255866922360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (496077696000).

255866922360 is an abundant number, since it is smaller than the sum of its proper divisors (736288469640).

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

255866922360 is a wasteful number, since it uses less digits than its factorization.

255866922360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612 (or 2602 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 255866922360 in words is "two hundred fifty-five billion, eight hundred sixty-six million, nine hundred twenty-two thousand, three hundred sixty".