22153452449 has 2 divisors, whose sum is σ = 22153452450. Its totient is φ = 22153452448.

The previous prime is 22153452427. The next prime is 22153452511. The reversal of 22153452449 is 94425435122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14899864225 + 7253588224 = 122065^2 + 85168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22153452449 is a prime.

It is not a weakly prime, because it can be changed into another prime (22153452949) 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 as a sum of consecutive naturals, namely, 11076726224 + 11076726225.

It is an arithmetic number, because the mean of its divisors is an integer number (11076726225).

Almost surely, 2^22153452449 is an apocalyptic number.

It is an amenable number.

22153452449 is a deficient number, since it is larger than the sum of its proper divisors (1).

22153452449 is an equidigital number, since it uses as much as digits as its factorization.

22153452449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 41.

The spelling of 22153452449 in words is "twenty-two billion, one hundred fifty-three million, four hundred fifty-two thousand, four hundred forty-nine".