255150240220 has 24 divisors (see below), whose sum is σ = 567334064304. Its totient is φ = 96056560896.

The previous prime is 255150240199. The next prime is 255150240251. The reversal of 255150240220 is 22042051552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375220602 + ... + 375221281.

It is an arithmetic number, because the mean of its divisors is an integer number (23638919346).

Almost surely, 2^255150240220 is an apocalyptic number.

255150240220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255150240220 is an abundant number, since it is smaller than the sum of its proper divisors (312183824084).

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

255150240220 is a wasteful number, since it uses less digits than its factorization.

255150240220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750441909 (or 750441907 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 255150240220 its reverse (22042051552), we get a palindrome (277192291772).

The spelling of 255150240220 in words is "two hundred fifty-five billion, one hundred fifty million, two hundred forty thousand, two hundred twenty".