255020204144420 has 96 divisors (see below), whose sum is σ = 629208818695296. Its totient is φ = 85595732812800.

The previous prime is 255020204144389. The next prime is 255020204144449. The reversal of 255020204144420 is 24441402020552.

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, 42174755 + ... + 47840885.

It is an arithmetic number, because the mean of its divisors is an integer number (6554258528076).

Almost surely, 2^{255020204144420} is an apocalyptic number.

255020204144420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255020204144420 is an abundant number, since it is smaller than the sum of its proper divisors (374188614550876).

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

255020204144420 is a wasteful number, since it uses less digits than its factorization.

255020204144420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5681901 (or 5681899 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 255020204144420 its reverse (24441402020552), we get a palindrome (279461606164972).

The spelling of 255020204144420 in words is "two hundred fifty-five trillion, twenty billion, two hundred four million, one hundred forty-four thousand, four hundred twenty".