22775294855808 has 256 divisors, whose sum is σ = 73401634944000. Its totient is φ = 6894819855360.

The previous prime is 22775294855773. The next prime is 22775294855861. The reversal of 22775294855808 is 80855849257722.

22775294855808 is a `hidden beast` number, since 2 + 2 + 7 + 7 + 5 + 29 + 48 + 558 + 0 + 8 = 666.

It is a super-2 number, since 2×22775294855808² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 38444341 + ... + 39032267.

It is an arithmetic number, because the mean of its divisors is an integer number (286725136500).

Almost surely, 2^{22775294855808} 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 22775294855808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36700817472000).

22775294855808 is an abundant number, since it is smaller than the sum of its proper divisors (50626340088192).

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

22775294855808 is a wasteful number, since it uses less digits than its factorization.

22775294855808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588980 (or 588962 counting only the distinct ones).

The product of its (nonzero) digits is 903168000, while the sum is 72.

The spelling of 22775294855808 in words is "twenty-two trillion, seven hundred seventy-five billion, two hundred ninety-four million, eight hundred fifty-five thousand, eight hundred eight".