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11668159 is a prime number
BaseRepresentation
bin101100100000…
…101010111111
3210221210201001
4230200222333
510441340114
61054031131
7201114646
oct54405277
923853631
1011668159
11664a508
123aa84a7
132556c49
14179a35d
151057374
hexb20abf

11668159 has 2 divisors, whose sum is σ = 11668160. Its totient is φ = 11668158.

The previous prime is 11668157. The next prime is 11668169. The reversal of 11668159 is 95186611.

11668159 is digitally balanced in base 3, 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 11668159 - 21 = 11668157 is a prime.

It is a super-2 number, since 2×116681592 = 272291868898562, which contains 22 as substring.

Together with 11668157, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11668157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5834079 + 5834080.

It is an arithmetic number, because the mean of its divisors is an integer number (5834080).

Almost surely, 211668159 is an apocalyptic number.

11668159 is a deficient number, since it is larger than the sum of its proper divisors (1).

11668159 is an equidigital number, since it uses as much as digits as its factorization.

11668159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 37.

The square root of 11668159 is about 3415.8687035658. The cubic root of 11668159 is about 226.8127405704.

The spelling of 11668159 in words is "eleven million, six hundred sixty-eight thousand, one hundred fifty-nine".