225156701689 has 2 divisors, whose sum is σ = 225156701690. Its totient is φ = 225156701688.

The previous prime is 225156701641. The next prime is 225156701743. The reversal of 225156701689 is 986107651522.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216373825600 + 8782876089 = 465160^2 + 93717^2 .

It is a cyclic number.

It is not a de Polignac number, because 225156701689 - 2⁹ = 225156701177 is a prime.

It is not a weakly prime, because it can be changed into another prime (225156701089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112578350844 + 112578350845.

It is an arithmetic number, because the mean of its divisors is an integer number (112578350845).

Almost surely, 2^225156701689 is an apocalyptic number.

It is an amenable number.

225156701689 is a deficient number, since it is larger than the sum of its proper divisors (1).

225156701689 is an equidigital number, since it uses as much as digits as its factorization.

225156701689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 52.

The spelling of 225156701689 in words is "two hundred twenty-five billion, one hundred fifty-six million, seven hundred one thousand, six hundred eighty-nine".