1011655550011 has 2 divisors, whose sum is σ = 1011655550012. Its totient is φ = 1011655550010.

The previous prime is 1011655549991. The next prime is 1011655550023. The reversal of 1011655550011 is 1100555561101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011655550011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011655550071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505827775005 + 505827775006.

It is an arithmetic number, because the mean of its divisors is an integer number (505827775006).

Almost surely, 2^{1011655550011} is an apocalyptic number.

1011655550011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011655550011 is an equidigital number, since it uses as much as digits as its factorization.

1011655550011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3750, while the sum is 31.

The spelling of 1011655550011 in words is "one trillion, eleven billion, six hundred fifty-five million, five hundred fifty thousand, eleven".