22005405005 has 8 divisors (see below), whose sum is σ = 26447685624. Its totient is φ = 17576857600.

The previous prime is 22005404983. The next prime is 22005405011. The reversal of 22005405005 is 50050450022.

It can be written as a sum of positive squares in 4 ways, for example, as 1432092649 + 20573312356 = 37843^2 + 143434^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22005405005 - 2¹⁶ = 22005339469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3429776 + ... + 3436185.

It is an arithmetic number, because the mean of its divisors is an integer number (3305960703).

Almost surely, 2^22005405005 is an apocalyptic number.

It is an amenable number.

22005405005 is a deficient number, since it is larger than the sum of its proper divisors (4442280619).

22005405005 is an equidigital number, since it uses as much as digits as its factorization.

22005405005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6866607.

The product of its (nonzero) digits is 2000, while the sum is 23.

Adding to 22005405005 its reverse (50050450022), we get a palindrome (72055855027).

The spelling of 22005405005 in words is "twenty-two billion, five million, four hundred five thousand, five".