22416642505 has 4 divisors (see below), whose sum is σ = 26899971012. Its totient is φ = 17933314000.

The previous prime is 22416642497. The next prime is 22416642557. The reversal of 22416642505 is 50524661422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3140929936 + 19275712569 = 56044^2 + 138837^2 .

It is not a de Polignac number, because 22416642505 - 2³ = 22416642497 is a prime.

It is a super-2 number, since 2×22416642505² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2241664246 + ... + 2241664255.

It is an arithmetic number, because the mean of its divisors is an integer number (6724992753).

Almost surely, 2^22416642505 is an apocalyptic number.

It is an amenable number.

22416642505 is a deficient number, since it is larger than the sum of its proper divisors (4483328507).

22416642505 is an equidigital number, since it uses as much as digits as its factorization.

22416642505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483328506.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 22416642505 in words is "twenty-two billion, four hundred sixteen million, six hundred forty-two thousand, five hundred five".