2016673181 has 2 divisors, whose sum is σ = 2016673182. Its totient is φ = 2016673180.

The previous prime is 2016673177. The next prime is 2016673187. The reversal of 2016673181 is 1813766102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1058461156 + 958212025 = 32534^2 + 30955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2016673181 - 2² = 2016673177 is a prime.

It is a super-2 number, since 2×2016673181² = 8133941437929317522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2016673187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1008336590 + 1008336591.

It is an arithmetic number, because the mean of its divisors is an integer number (1008336591).

Almost surely, 2^2016673181 is an apocalyptic number.

It is an amenable number.

2016673181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2016673181 is an equidigital number, since it uses as much as digits as its factorization.

2016673181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 2016673181 is about 44907.3844818422. The cubic root of 2016673181 is about 1263.4125141106.

The spelling of 2016673181 in words is "two billion, sixteen million, six hundred seventy-three thousand, one hundred eighty-one".