2255255321440 has 48 divisors (see below), whose sum is σ = 5812408037520. Its totient is φ = 820092843520.

The previous prime is 2255255321401. The next prime is 2255255321453. The reversal of 2255255321440 is 441235525522.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 2255255321393 and 2255255321402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640695775 + ... + 640699294.

It is an arithmetic number, because the mean of its divisors is an integer number (121091834115).

Almost surely, 2^{2255255321440} is an apocalyptic number.

2255255321440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2255255321440 is an abundant number, since it is smaller than the sum of its proper divisors (3557152716080).

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

2255255321440 is a wasteful number, since it uses less digits than its factorization.

2255255321440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281395095 (or 1281395087 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 40.

The spelling of 2255255321440 in words is "two trillion, two hundred fifty-five billion, two hundred fifty-five million, three hundred twenty-one thousand, four hundred forty".