165371220041 has 8 divisors (see below), whose sum is σ = 165907672320. Its totient is φ = 164834861328.

The previous prime is 165371220029. The next prime is 165371220071. The reversal of 165371220041 is 140022173561.

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 165371220041 - 2¹⁰ = 165371219017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165371220071) 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 in 7 ways as a sum of consecutive naturals, for example, 6002600 + ... + 6030086.

It is an arithmetic number, because the mean of its divisors is an integer number (20738459040).

Almost surely, 2^165371220041 is an apocalyptic number.

It is an amenable number.

165371220041 is a deficient number, since it is larger than the sum of its proper divisors (536452279).

165371220041 is a wasteful number, since it uses less digits than its factorization.

165371220041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46783.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 165371220041 in words is "one hundred sixty-five billion, three hundred seventy-one million, two hundred twenty thousand, forty-one".