22003654441 has 2 divisors, whose sum is σ = 22003654442. Its totient is φ = 22003654440.

The previous prime is 22003654433. The next prime is 22003654499. The reversal of 22003654441 is 14445630022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18983052841 + 3020601600 = 137779^2 + 54960^2 .

It is a cyclic number.

It is not a de Polignac number, because 22003654441 - 2³ = 22003654433 is a prime.

It is not a weakly prime, because it can be changed into another prime (22003654241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001827220 + 11001827221.

It is an arithmetic number, because the mean of its divisors is an integer number (11001827221).

Almost surely, 2^22003654441 is an apocalyptic number.

It is an amenable number.

22003654441 is a deficient number, since it is larger than the sum of its proper divisors (1).

22003654441 is an equidigital number, since it uses as much as digits as its factorization.

22003654441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 31.

The spelling of 22003654441 in words is "twenty-two billion, three million, six hundred fifty-four thousand, four hundred forty-one".