22644452355 has 64 divisors (see below), whose sum is σ = 42775216128. Its totient is φ = 10010206080.

The previous prime is 22644452351. The next prime is 22644452359. The reversal of 22644452355 is 55325444622.

It is an interprime number because it is at equal distance from previous prime (22644452351) and next prime (22644452359).

It is not a de Polignac number, because 22644452355 - 2² = 22644452351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22644452351) 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 63 ways as a sum of consecutive naturals, for example, 7963564 + ... + 7966406.

It is an arithmetic number, because the mean of its divisors is an integer number (668362752).

Almost surely, 2^22644452355 is an apocalyptic number.

22644452355 is a deficient number, since it is larger than the sum of its proper divisors (20130763773).

22644452355 is a wasteful number, since it uses less digits than its factorization.

22644452355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5336.

The product of its digits is 1152000, while the sum is 42.

Adding to 22644452355 its reverse (55325444622), we get a palindrome (77969896977).

The spelling of 22644452355 in words is "twenty-two billion, six hundred forty-four million, four hundred fifty-two thousand, three hundred fifty-five".