161846611 has 2 divisors, whose sum is σ = 161846612. Its totient is φ = 161846610.

The previous prime is 161846599. The next prime is 161846689. The reversal of 161846611 is 116648161.

It is a happy number.

161846611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161846611 - 2¹⁹ = 161322323 is a prime.

It is not a weakly prime, because it can be changed into another prime (161846911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80923305 + 80923306.

It is an arithmetic number, because the mean of its divisors is an integer number (80923306).

Almost surely, 2^161846611 is an apocalyptic number.

161846611 is a deficient number, since it is larger than the sum of its proper divisors (1).

161846611 is an equidigital number, since it uses as much as digits as its factorization.

161846611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 34.

The square root of 161846611 is about 12721.8949453295. The cubic root of 161846611 is about 544.9640702403.

The spelling of 161846611 in words is "one hundred sixty-one million, eight hundred forty-six thousand, six hundred eleven".