111100660663 has 2 divisors, whose sum is σ = 111100660664. Its totient is φ = 111100660662.

The previous prime is 111100660579. The next prime is 111100660669. The reversal of 111100660663 is 366066001111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111100660663 - 2¹³ = 111100652471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111100660669) 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, 55550330331 + 55550330332.

It is an arithmetic number, because the mean of its divisors is an integer number (55550330332).

Almost surely, 2^111100660663 is an apocalyptic number.

111100660663 is a deficient number, since it is larger than the sum of its proper divisors (1).

111100660663 is an equidigital number, since it uses as much as digits as its factorization.

111100660663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

Adding to 111100660663 its reverse (366066001111), we get a palindrome (477166661774).

The spelling of 111100660663 in words is "one hundred eleven billion, one hundred million, six hundred sixty thousand, six hundred sixty-three".