22005690256 has 160 divisors (see below), whose sum is σ = 53516574720. Its totient is φ = 8630323200.

The previous prime is 22005690251. The next prime is 22005690257. The reversal of 22005690256 is 65209650022.

It is a super-3 number, since 3×22005690256³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22005690251) 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 31 ways as a sum of consecutive naturals, for example, 1756045 + ... + 1768531.

It is an arithmetic number, because the mean of its divisors is an integer number (334478592).

Almost surely, 2^22005690256 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 22005690256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26758287360).

22005690256 is an abundant number, since it is smaller than the sum of its proper divisors (31510884464).

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

22005690256 is a wasteful number, since it uses less digits than its factorization.

22005690256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12573 (or 12567 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 22005690256 in words is "twenty-two billion, five million, six hundred ninety thousand, two hundred fifty-six".