11166531071 has 2 divisors, whose sum is σ = 11166531072. Its totient is φ = 11166531070.

The previous prime is 11166531053. The next prime is 11166531091. The reversal of 11166531071 is 17013566111.

It is a weak prime.

It is an emirp because it is prime and its reverse (17013566111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11166531071 - 2²⁶ = 11099422207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11166531091) 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, 5583265535 + 5583265536.

It is an arithmetic number, because the mean of its divisors is an integer number (5583265536).

Almost surely, 2^11166531071 is an apocalyptic number.

11166531071 is a deficient number, since it is larger than the sum of its proper divisors (1).

11166531071 is an equidigital number, since it uses as much as digits as its factorization.

11166531071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 32.

The spelling of 11166531071 in words is "eleven billion, one hundred sixty-six million, five hundred thirty-one thousand, seventy-one".