11102166661501 has 2 divisors, whose sum is σ = 11102166661502. Its totient is φ = 11102166661500.

The previous prime is 11102166661459. The next prime is 11102166661513. The reversal of 11102166661501 is 10516666120111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7424589536100 + 3677577125401 = 2724810^2 + 1917701^2 .

It is a cyclic number.

It is not a de Polignac number, because 11102166661501 - 2⁷ = 11102166661373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11102166661571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551083330750 + 5551083330751.

It is an arithmetic number, because the mean of its divisors is an integer number (5551083330751).

Almost surely, 2^{11102166661501} is an apocalyptic number.

It is an amenable number.

11102166661501 is a deficient number, since it is larger than the sum of its proper divisors (1).

11102166661501 is an equidigital number, since it uses as much as digits as its factorization.

11102166661501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 37.

The spelling of 11102166661501 in words is "eleven trillion, one hundred two billion, one hundred sixty-six million, six hundred sixty-one thousand, five hundred one".