165045601632533 has 2 divisors, whose sum is σ = 165045601632534. Its totient is φ = 165045601632532.

The previous prime is 165045601632479. The next prime is 165045601632553. The reversal of 165045601632533 is 335236106540561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82971822378769 + 82073779253764 = 9108887^2 + 9059458^2 .

It is a cyclic number.

It is not a de Polignac number, because 165045601632533 - 2¹⁴ = 165045601616149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165045601632553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82522800816266 + 82522800816267.

It is an arithmetic number, because the mean of its divisors is an integer number (82522800816267).

Almost surely, 2^{165045601632533} is an apocalyptic number.

It is an amenable number.

165045601632533 is a deficient number, since it is larger than the sum of its proper divisors (1).

165045601632533 is an equidigital number, since it uses as much as digits as its factorization.

165045601632533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832000, while the sum is 50.

The spelling of 165045601632533 in words is "one hundred sixty-five trillion, forty-five billion, six hundred one million, six hundred thirty-two thousand, five hundred thirty-three".