11166481 has 2 divisors, whose sum is σ = 11166482. Its totient is φ = 11166480.

The previous prime is 11166469. The next prime is 11166497. The reversal of 11166481 is 18466111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7102225 + 4064256 = 2665^2 + 2016^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11166481 is a prime.

It is a super-2 number, since 2×11166481² = 249380595846722, which contains 22 as substring.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (11166451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5583240 + 5583241.

It is an arithmetic number, because the mean of its divisors is an integer number (5583241).

Almost surely, 2^11166481 is an apocalyptic number.

It is an amenable number.

11166481 is a deficient number, since it is larger than the sum of its proper divisors (1).

11166481 is an equidigital number, since it uses as much as digits as its factorization.

11166481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 28.

The square root of 11166481 is about 3341.6284952101. The cubic root of 11166481 is about 223.5143669644.

The spelling of 11166481 in words is "eleven million, one hundred sixty-six thousand, four hundred eighty-one".