3318186161 has 2 divisors, whose sum is σ = 3318186162. Its totient is φ = 3318186160.

The previous prime is 3318186133. The next prime is 3318186167. The reversal of 3318186161 is 1616818133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3285467761 + 32718400 = 57319^2 + 5720^2 .

It is a cyclic number.

It is not a de Polignac number, because 3318186161 - 2³⁰ = 2244444337 is a prime.

It is a super-2 number, since 2×3318186161² = 22020718798103835842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3318186167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1659093080 + 1659093081.

It is an arithmetic number, because the mean of its divisors is an integer number (1659093081).

Almost surely, 2^3318186161 is an apocalyptic number.

It is an amenable number.

3318186161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3318186161 is an equidigital number, since it uses as much as digits as its factorization.

3318186161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 38.

The square root of 3318186161 is about 57603.6991954510. The cubic root of 3318186161 is about 1491.5354591763.

The spelling of 3318186161 in words is "three billion, three hundred eighteen million, one hundred eighty-six thousand, one hundred sixty-one".