22155030405 has 24 divisors (see below), whose sum is σ = 38411194848. Its totient is φ = 11813203296.

The previous prime is 22155030397. The next prime is 22155030419. The reversal of 22155030405 is 50403055122.

It is a happy number.

22155030405 is a `hidden beast` number, since 221 + 5 + 5 + 0 + 30 + 405 = 666.

It is not a de Polignac number, because 22155030405 - 2³ = 22155030397 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 139914 + ... + 252756.

It is an arithmetic number, because the mean of its divisors is an integer number (1600466452).

Almost surely, 2^22155030405 is an apocalyptic number.

It is an amenable number.

22155030405 is a deficient number, since it is larger than the sum of its proper divisors (16256164443).

22155030405 is a wasteful number, since it uses less digits than its factorization.

22155030405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117217 (or 117214 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 22155030405 its reverse (50403055122), we get a palindrome (72558085527).

The spelling of 22155030405 in words is "twenty-two billion, one hundred fifty-five million, thirty thousand, four hundred five".