22775555808 has 96 divisors (see below), whose sum is σ = 66491712000. Its totient is φ = 7584651648.

The previous prime is 22775555807. The next prime is 22775555837. The reversal of 22775555808 is 80855557722.

22775555808 is a `hidden beast` number, since 2 + 2 + 7 + 7 + 5 + 55 + 580 + 8 = 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22775555807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 941043 + ... + 964941.

It is an arithmetic number, because the mean of its divisors is an integer number (692622000).

Almost surely, 2^22775555808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22775555808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33245856000).

22775555808 is an abundant number, since it is smaller than the sum of its proper divisors (43716156192).

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

22775555808 is a wasteful number, since it uses less digits than its factorization.

22775555808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25021 (or 25007 counting only the distinct ones).

The product of its (nonzero) digits is 7840000, while the sum is 54.

The spelling of 22775555808 in words is "twenty-two billion, seven hundred seventy-five million, five hundred fifty-five thousand, eight hundred eight".