165221132231459 has 2 divisors, whose sum is σ = 165221132231460. Its totient is φ = 165221132231458.

The previous prime is 165221132231431. The next prime is 165221132231461. The reversal of 165221132231459 is 954132231122561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165221132231459 - 2⁴⁰ = 164121620603683 is a prime.

Together with 165221132231461, 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 (165221132231479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82610566115729 + 82610566115730.

It is an arithmetic number, because the mean of its divisors is an integer number (82610566115730).

Almost surely, 2^{165221132231459} is an apocalyptic number.

165221132231459 is a deficient number, since it is larger than the sum of its proper divisors (1).

165221132231459 is an equidigital number, since it uses as much as digits as its factorization.

165221132231459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 47.

The spelling of 165221132231459 in words is "one hundred sixty-five trillion, two hundred twenty-one billion, one hundred thirty-two million, two hundred thirty-one thousand, four hundred fifty-nine".