22808238237855 has 128 divisors (see below), whose sum is σ = 49337553807360. Its totient is φ = 9759074088960.

The previous prime is 22808238237803. The next prime is 22808238237871. The reversal of 22808238237855 is 55873283280822.

22808238237855 is a `hidden beast` number, since 2 + 28 + 0 + 8 + 238 + 2 + 378 + 5 + 5 = 666.

It is not a de Polignac number, because 22808238237855 - 2¹¹ = 22808238235807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 22808238237792 and 22808238237801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1014189 + ... + 6829718.

It is an arithmetic number, because the mean of its divisors is an integer number (385449639120).

Almost surely, 2^{22808238237855} is an apocalyptic number.

22808238237855 is an abundant number, since it is smaller than the sum of its proper divisors (26529315569505).

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

22808238237855 is a wasteful number, since it uses less digits than its factorization.

22808238237855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7844126 (or 7844120 counting only the distinct ones).

The product of its (nonzero) digits is 103219200, while the sum is 63.

The spelling of 22808238237855 in words is "twenty-two trillion, eight hundred eight billion, two hundred thirty-eight million, two hundred thirty-seven thousand, eight hundred fifty-five".