2236466681 has 2 divisors, whose sum is σ = 2236466682. Its totient is φ = 2236466680.

The previous prime is 2236466579. The next prime is 2236466711. The reversal of 2236466681 is 1866646322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1961072656 + 275394025 = 44284^2 + 16595^2 .

It is a cyclic number.

It is not a de Polignac number, because 2236466681 - 2¹⁴ = 2236450297 is a prime.

It is a super-2 number, since 2×2236466681² = 10003566430446311522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2236462681) 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, 1118233340 + 1118233341.

It is an arithmetic number, because the mean of its divisors is an integer number (1118233341).

Almost surely, 2^2236466681 is an apocalyptic number.

It is an amenable number.

2236466681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2236466681 is an equidigital number, since it uses as much as digits as its factorization.

2236466681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 44.

The square root of 2236466681 is about 47291.2960384889. The cubic root of 2236466681 is about 1307.7382024667.

The spelling of 2236466681 in words is "two billion, two hundred thirty-six million, four hundred sixty-six thousand, six hundred eighty-one".