215233564170241 has 2 divisors, whose sum is σ = 215233564170242. Its totient is φ = 215233564170240.

The previous prime is 215233564170139. The next prime is 215233564170253. The reversal of 215233564170241 is 142071465332512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180542112067216 + 34691452103025 = 13436596^2 + 5889945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-215233564170241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215233564170191 and 215233564170200.

It is not a weakly prime, because it can be changed into another prime (215233564177241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107616782085120 + 107616782085121.

It is an arithmetic number, because the mean of its divisors is an integer number (107616782085121).

Almost surely, 2^{215233564170241} is an apocalyptic number.

It is an amenable number.

215233564170241 is a deficient number, since it is larger than the sum of its proper divisors (1).

215233564170241 is an equidigital number, since it uses as much as digits as its factorization.

215233564170241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 215233564170241 in words is "two hundred fifteen trillion, two hundred thirty-three billion, five hundred sixty-four million, one hundred seventy thousand, two hundred forty-one".