655711681193 has 2 divisors, whose sum is σ = 655711681194. Its totient is φ = 655711681192.

The previous prime is 655711681133. The next prime is 655711681201. The reversal of 655711681193 is 391186117556.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 621468918889 + 34242762304 = 788333^2 + 185048^2 .

It is a cyclic number.

It is not a de Polignac number, because 655711681193 - 2⁶ = 655711681129 is a prime.

It is not a weakly prime, because it can be changed into another prime (655711681133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327855840596 + 327855840597.

It is an arithmetic number, because the mean of its divisors is an integer number (327855840597).

Almost surely, 2^655711681193 is an apocalyptic number.

It is an amenable number.

655711681193 is a deficient number, since it is larger than the sum of its proper divisors (1).

655711681193 is an equidigital number, since it uses as much as digits as its factorization.

655711681193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 53.

The spelling of 655711681193 in words is "six hundred fifty-five billion, seven hundred eleven million, six hundred eighty-one thousand, one hundred ninety-three".