655711681133 has 2 divisors, whose sum is σ = 655711681134. Its totient is φ = 655711681132.

The previous prime is 655711681129. The next prime is 655711681193. The reversal of 655711681133 is 331186117556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 648094231849 + 7617449284 = 805043^2 + 87278^2 .

It is a cyclic number.

It is not a de Polignac number, because 655711681133 - 2² = 655711681129 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655711681193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327855840566 + 327855840567.

It is an arithmetic number, because the mean of its divisors is an integer number (327855840567).

Almost surely, 2^655711681133 is an apocalyptic number.

It is an amenable number.

655711681133 is a deficient number, since it is larger than the sum of its proper divisors (1).

655711681133 is an equidigital number, since it uses as much as digits as its factorization.

655711681133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 47.

Adding to 655711681133 its reverse (331186117556), we get a palindrome (986897798689).

The spelling of 655711681133 in words is "six hundred fifty-five billion, seven hundred eleven million, six hundred eighty-one thousand, one hundred thirty-three".