8967561161 has 8 divisors (see below), whose sum is σ = 9684279360. Its totient is φ = 8254686672.

The previous prime is 8967561137. The next prime is 8967561167. The reversal of 8967561161 is 1611657698.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8967561161 - 2²² = 8963366857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8967561167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956075 + ... + 965408.

It is an arithmetic number, because the mean of its divisors is an integer number (1210534920).

Almost surely, 2^8967561161 is an apocalyptic number.

It is an amenable number.

8967561161 is a deficient number, since it is larger than the sum of its proper divisors (716718199).

8967561161 is a wasteful number, since it uses less digits than its factorization.

8967561161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921855.

The product of its digits is 544320, while the sum is 50.

The square root of 8967561161 is about 94697.2077782656. The cubic root of 8967561161 is about 2077.5817217693.

The spelling of 8967561161 in words is "eight billion, nine hundred sixty-seven million, five hundred sixty-one thousand, one hundred sixty-one".