22016432321449 has 2 divisors, whose sum is σ = 22016432321450. Its totient is φ = 22016432321448.

The previous prime is 22016432321423. The next prime is 22016432321459. The reversal of 22016432321449 is 94412323461022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20878210055824 + 1138222265625 = 4569268^2 + 1066875^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22016432321449 is a prime.

It is a super-3 number, since 3×22016432321449³ (a number of 41 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (22016432321459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11008216160724 + 11008216160725.

It is an arithmetic number, because the mean of its divisors is an integer number (11008216160725).

Almost surely, 2^{22016432321449} is an apocalyptic number.

It is an amenable number.

22016432321449 is a deficient number, since it is larger than the sum of its proper divisors (1).

22016432321449 is an equidigital number, since it uses as much as digits as its factorization.

22016432321449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 22016432321449 in words is "twenty-two trillion, sixteen billion, four hundred thirty-two million, three hundred twenty-one thousand, four hundred forty-nine".