1166473081 has 2 divisors, whose sum is σ = 1166473082. Its totient is φ = 1166473080.

The previous prime is 1166473069. The next prime is 1166473093. The reversal of 1166473081 is 1803746611.

It is a balanced prime because it is at equal distance from previous prime (1166473069) and next prime (1166473093).

It can be written as a sum of positive squares in only one way, i.e., 962240400 + 204232681 = 31020^2 + 14291^2 .

It is a cyclic number.

It is not a de Polignac number, because 1166473081 - 2⁹ = 1166472569 is a prime.

It is a super-2 number, since 2×1166473081² = 2721318897395265122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1166473081.

It is not a weakly prime, because it can be changed into another prime (1166473381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 583236540 + 583236541.

It is an arithmetic number, because the mean of its divisors is an integer number (583236541).

Almost surely, 2^1166473081 is an apocalyptic number.

It is an amenable number.

1166473081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166473081 is an equidigital number, since it uses as much as digits as its factorization.

1166473081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1166473081 is about 34153.6686316419. The cubic root of 1166473081 is about 1052.6683698798.

The spelling of 1166473081 in words is "one billion, one hundred sixty-six million, four hundred seventy-three thousand, eighty-one".