6167916081 has 12 divisors (see below), whose sum is σ = 9433283652. Its totient is φ = 3870064896.

The previous prime is 6167916077. The next prime is 6167916089. The reversal of 6167916081 is 1806197616.

It can be written as a sum of positive squares in 2 ways, for example, as 3260981025 + 2906935056 = 57105^2 + 53916^2 .

It is not a de Polignac number, because 6167916081 - 2² = 6167916077 is a prime.

It is a super-2 number, since 2×6167916081² = 76086377564516797122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6167916089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20156436 + ... + 20156741.

It is an arithmetic number, because the mean of its divisors is an integer number (786106971).

Almost surely, 2^6167916081 is an apocalyptic number.

It is an amenable number.

6167916081 is a deficient number, since it is larger than the sum of its proper divisors (3265367571).

6167916081 is a wasteful number, since it uses less digits than its factorization.

6167916081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40313200 (or 40313197 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 6167916081 is about 78536.0813957508. The cubic root of 6167916081 is about 1833.9161936908.

The spelling of 6167916081 in words is "six billion, one hundred sixty-seven million, nine hundred sixteen thousand, eighty-one".