226642604129 has 2 divisors, whose sum is σ = 226642604130. Its totient is φ = 226642604128.

The previous prime is 226642604077. The next prime is 226642604143. The reversal of 226642604129 is 921406246622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125599360000 + 101043244129 = 354400^2 + 317873^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226642604129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 226642604129.

It is not a weakly prime, because it can be changed into another prime (226642604729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113321302064 + 113321302065.

It is an arithmetic number, because the mean of its divisors is an integer number (113321302065).

Almost surely, 2^226642604129 is an apocalyptic number.

It is an amenable number.

226642604129 is a deficient number, since it is larger than the sum of its proper divisors (1).

226642604129 is an equidigital number, since it uses as much as digits as its factorization.

226642604129 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 44.

The spelling of 226642604129 in words is "two hundred twenty-six billion, six hundred forty-two million, six hundred four thousand, one hundred twenty-nine".