655112011 has 2 divisors, whose sum is σ = 655112012. Its totient is φ = 655112010.

The previous prime is 655111999. The next prime is 655112021. The reversal of 655112011 is 110211556.

It is a happy number.

655112011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 655112011 - 2²⁵ = 621557579 is a prime.

It is not a weakly prime, because it can be changed into another prime (655112021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327556005 + 327556006.

It is an arithmetic number, because the mean of its divisors is an integer number (327556006).

Almost surely, 2^655112011 is an apocalyptic number.

655112011 is a deficient number, since it is larger than the sum of its proper divisors (1).

655112011 is an equidigital number, since it uses as much as digits as its factorization.

655112011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 655112011 is about 25595.1560065572. The cubic root of 655112011 is about 868.5040620118.

Adding to 655112011 its reverse (110211556), we get a palindrome (765323567).

The spelling of 655112011 in words is "six hundred fifty-five million, one hundred twelve thousand, eleven".