655889461111 has 2 divisors, whose sum is σ = 655889461112. Its totient is φ = 655889461110.

The previous prime is 655889461109. The next prime is 655889461223. The reversal of 655889461111 is 111164988556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 655889461111 - 2¹ = 655889461109 is a prime.

Together with 655889461109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655889461811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327944730555 + 327944730556.

It is an arithmetic number, because the mean of its divisors is an integer number (327944730556).

Almost surely, 2^655889461111 is an apocalyptic number.

655889461111 is a deficient number, since it is larger than the sum of its proper divisors (1).

655889461111 is an equidigital number, since it uses as much as digits as its factorization.

655889461111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2073600, while the sum is 55.

The spelling of 655889461111 in words is "six hundred fifty-five billion, eight hundred eighty-nine million, four hundred sixty-one thousand, one hundred eleven".