161059667 has 2 divisors, whose sum is σ = 161059668. Its totient is φ = 161059666.

The previous prime is 161059627. The next prime is 161059693. The reversal of 161059667 is 766950161.

161059667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (766950161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 161059667 - 2²⁰ = 160011091 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (161059627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80529833 + 80529834.

It is an arithmetic number, because the mean of its divisors is an integer number (80529834).

Almost surely, 2^161059667 is an apocalyptic number.

161059667 is a deficient number, since it is larger than the sum of its proper divisors (1).

161059667 is an equidigital number, since it uses as much as digits as its factorization.

161059667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 161059667 is about 12690.9285318293. The cubic root of 161059667 is about 544.0793783300.

The spelling of 161059667 in words is "one hundred sixty-one million, fifty-nine thousand, six hundred sixty-seven".