165043065326443 has 8 divisors (see below), whose sum is σ = 165176964935136. Its totient is φ = 164909176536000.

The previous prime is 165043065326371. The next prime is 165043065326449. The reversal of 165043065326443 is 344623560340561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165043065326443 - 2²⁵ = 165043031772011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165043065326449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27960730 + ... + 33344992.

It is an arithmetic number, because the mean of its divisors is an integer number (20647120616892).

Almost surely, 2^{165043065326443} is an apocalyptic number.

165043065326443 is a deficient number, since it is larger than the sum of its proper divisors (133899608693).

165043065326443 is a wasteful number, since it uses less digits than its factorization.

165043065326443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5409125.

The product of its (nonzero) digits is 18662400, while the sum is 52.

The spelling of 165043065326443 in words is "one hundred sixty-five trillion, forty-three billion, sixty-five million, three hundred twenty-six thousand, four hundred forty-three".