165015550160543 has 2 divisors, whose sum is σ = 165015550160544. Its totient is φ = 165015550160542.

The previous prime is 165015550160473. The next prime is 165015550160557. The reversal of 165015550160543 is 345061055510561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165015550160543 - 2²⁸ = 165015281725087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165015550160243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82507775080271 + 82507775080272.

It is an arithmetic number, because the mean of its divisors is an integer number (82507775080272).

Almost surely, 2^{165015550160543} is an apocalyptic number.

165015550160543 is a deficient number, since it is larger than the sum of its proper divisors (1).

165015550160543 is an equidigital number, since it uses as much as digits as its factorization.

165015550160543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350000, while the sum is 47.

The spelling of 165015550160543 in words is "one hundred sixty-five trillion, fifteen billion, five hundred fifty million, one hundred sixty thousand, five hundred forty-three".