255466216140 has 24 divisors (see below), whose sum is σ = 715305405360. Its totient is φ = 68124324288.

The previous prime is 255466216139. The next prime is 255466216151. The reversal of 255466216140 is 41612664552.

It is a junction number, because it is equal to n+sod(n) for n = 255466216092 and 255466216101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2128885075 + ... + 2128885194.

It is an arithmetic number, because the mean of its divisors is an integer number (29804391890).

Almost surely, 2^255466216140 is an apocalyptic number.

255466216140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255466216140 is an abundant number, since it is smaller than the sum of its proper divisors (459839189220).

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

255466216140 is a wasteful number, since it uses less digits than its factorization.

255466216140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257770281 (or 4257770279 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 255466216140 in words is "two hundred fifty-five billion, four hundred sixty-six million, two hundred sixteen thousand, one hundred forty".