1655550110111 has 2 divisors, whose sum is σ = 1655550110112. Its totient is φ = 1655550110110.

The previous prime is 1655550110107. The next prime is 1655550110119. The reversal of 1655550110111 is 1110110555561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1655550110111 - 2² = 1655550110107 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1655550110119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827775055055 + 827775055056.

It is an arithmetic number, because the mean of its divisors is an integer number (827775055056).

Almost surely, 2^{1655550110111} is an apocalyptic number.

1655550110111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1655550110111 is an equidigital number, since it uses as much as digits as its factorization.

1655550110111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3750, while the sum is 32.

Adding to 1655550110111 its reverse (1110110555561), we get a palindrome (2765660665672).

The spelling of 1655550110111 in words is "one trillion, six hundred fifty-five billion, five hundred fifty million, one hundred ten thousand, one hundred eleven".