2255621816736 has 96 divisors (see below), whose sum is σ = 6579181062720. Its totient is φ = 751841471232.

The previous prime is 2255621816713. The next prime is 2255621816843. The reversal of 2255621816736 is 6376181265522.

2255621816736 is a `hidden beast` number, since 2 + 2 + 5 + 5 + 621 + 8 + 1 + 6 + 7 + 3 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28094346 + ... + 28174518.

It is an arithmetic number, because the mean of its divisors is an integer number (68533136070).

Almost surely, 2^{2255621816736} is an apocalyptic number.

It is an amenable number.

2255621816736 is an abundant number, since it is smaller than the sum of its proper divisors (4323559245984).

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

2255621816736 is a wasteful number, since it uses less digits than its factorization.

2255621816736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112755 (or 112741 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 2255621816736 in words is "two trillion, two hundred fifty-five billion, six hundred twenty-one million, eight hundred sixteen thousand, seven hundred thirty-six".