4456226561 has 2 divisors, whose sum is σ = 4456226562. Its totient is φ = 4456226560.

The previous prime is 4456226521. The next prime is 4456226581. The reversal of 4456226561 is 1656226544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2306976961 + 2149249600 = 48031^2 + 46360^2 .

It is a cyclic number.

It is not a de Polignac number, because 4456226561 - 2¹⁴ = 4456210177 is a prime.

It is not a weakly prime, because it can be changed into another prime (4456226521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2228113280 + 2228113281.

It is an arithmetic number, because the mean of its divisors is an integer number (2228113281).

Almost surely, 2^4456226561 is an apocalyptic number.

It is an amenable number.

4456226561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4456226561 is an equidigital number, since it uses as much as digits as its factorization.

4456226561 is an evil number, because the sum of its binary digits is even.

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

The square root of 4456226561 is about 66754.9740543729. The cubic root of 4456226561 is about 1645.5929608476.

The spelling of 4456226561 in words is "four billion, four hundred fifty-six million, two hundred twenty-six thousand, five hundred sixty-one".