111100165506611 has 2 divisors, whose sum is σ = 111100165506612. Its totient is φ = 111100165506610.

The previous prime is 111100165506481. The next prime is 111100165506679. The reversal of 111100165506611 is 116605561001111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111100165506611 - 2²⁶ = 111100098397747 is a prime.

It is not a weakly prime, because it can be changed into another prime (111100165505611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550082753305 + 55550082753306.

It is an arithmetic number, because the mean of its divisors is an integer number (55550082753306).

Almost surely, 2^{111100165506611} is an apocalyptic number.

111100165506611 is a deficient number, since it is larger than the sum of its proper divisors (1).

111100165506611 is an equidigital number, since it uses as much as digits as its factorization.

111100165506611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 35.

The spelling of 111100165506611 in words is "one hundred eleven trillion, one hundred billion, one hundred sixty-five million, five hundred six thousand, six hundred eleven".