2255578902120 has 128 divisors (see below), whose sum is σ = 6832188829440. Its totient is φ = 595678433280.

The previous prime is 2255578902119. The next prime is 2255578902133. The reversal of 2255578902120 is 212098755522.

2255578902120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2255578902120.

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, 16706485 + ... + 16840955.

It is an arithmetic number, because the mean of its divisors is an integer number (53376475230).

Almost surely, 2^{2255578902120} is an apocalyptic number.

2255578902120 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 2255578902120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3416094414720).

2255578902120 is an abundant number, since it is smaller than the sum of its proper divisors (4576609927320).

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

2255578902120 is a wasteful number, since it uses less digits than its factorization.

2255578902120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135835 (or 135831 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 48.

The spelling of 2255578902120 in words is "two trillion, two hundred fifty-five billion, five hundred seventy-eight million, nine hundred two thousand, one hundred twenty".