4266220061 has 2 divisors, whose sum is σ = 4266220062. Its totient is φ = 4266220060.

The previous prime is 4266220039. The next prime is 4266220087. The reversal of 4266220061 is 1600226624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2400412036 + 1865808025 = 48994^2 + 43195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4266220061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4266220661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2133110030 + 2133110031.

It is an arithmetic number, because the mean of its divisors is an integer number (2133110031).

Almost surely, 2^4266220061 is an apocalyptic number.

It is an amenable number.

4266220061 is a deficient number, since it is larger than the sum of its proper divisors (1).

4266220061 is an equidigital number, since it uses as much as digits as its factorization.

4266220061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 4266220061 is about 65316.3077722555. The cubic root of 4266220061 is about 1621.8639396392.

Adding to 4266220061 its reverse (1600226624), we get a palindrome (5866446685).

The spelling of 4266220061 in words is "four billion, two hundred sixty-six million, two hundred twenty thousand, sixty-one".