1659033161 has 2 divisors, whose sum is σ = 1659033162. Its totient is φ = 1659033160.

The previous prime is 1659033157. The next prime is 1659033221. The reversal of 1659033161 is 1613309561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 899700025 + 759333136 = 29995^2 + 27556^2 .

It is a cyclic number.

It is not a de Polignac number, because 1659033161 - 2² = 1659033157 is a prime.

It is not a weakly prime, because it can be changed into another prime (1659033361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 829516580 + 829516581.

It is an arithmetic number, because the mean of its divisors is an integer number (829516581).

Almost surely, 2^1659033161 is an apocalyptic number.

It is an amenable number.

1659033161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1659033161 is an equidigital number, since it uses as much as digits as its factorization.

1659033161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 1659033161 is about 40731.2307817969. The cubic root of 1659033161 is about 1183.8182266087.

The spelling of 1659033161 in words is "one billion, six hundred fifty-nine million, thirty-three thousand, one hundred sixty-one".