32168886161 has 2 divisors, whose sum is σ = 32168886162. Its totient is φ = 32168886160.

The previous prime is 32168886121. The next prime is 32168886179. The reversal of 32168886161 is 16168886123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21029350225 + 11139535936 = 145015^2 + 105544^2 .

It is a cyclic number.

It is not a de Polignac number, because 32168886161 - 2²² = 32164691857 is a prime.

It is not a weakly prime, because it can be changed into another prime (32168886121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16084443080 + 16084443081.

It is an arithmetic number, because the mean of its divisors is an integer number (16084443081).

Almost surely, 2^32168886161 is an apocalyptic number.

It is an amenable number.

32168886161 is a deficient number, since it is larger than the sum of its proper divisors (1).

32168886161 is an equidigital number, since it uses as much as digits as its factorization.

32168886161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 663552, while the sum is 50.

The spelling of 32168886161 in words is "thirty-two billion, one hundred sixty-eight million, eight hundred eighty-six thousand, one hundred sixty-one".