16165361 has 2 divisors, whose sum is σ = 16165362. Its totient is φ = 16165360.

The previous prime is 16165327. The next prime is 16165363. The reversal of 16165361 is 16356161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14205361 + 1960000 = 3769^2 + 1400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16165361 is a prime.

It is a super-2 number, since 2×16165361² = 522637792520642, which contains 22 as substring.

Together with 16165363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16165363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8082680 + 8082681.

It is an arithmetic number, because the mean of its divisors is an integer number (8082681).

Almost surely, 2^16165361 is an apocalyptic number.

It is an amenable number.

16165361 is a deficient number, since it is larger than the sum of its proper divisors (1).

16165361 is an equidigital number, since it uses as much as digits as its factorization.

16165361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 29.

The square root of 16165361 is about 4020.6169924528. The cubic root of 16165361 is about 252.8493272946.

The spelling of 16165361 in words is "sixteen million, one hundred sixty-five thousand, three hundred sixty-one".