165641314105 has 16 divisors (see below), whose sum is σ = 204120691200. Its totient is φ = 128992893120.

The previous prime is 165641314051. The next prime is 165641314109. The reversal of 165641314105 is 501413146561.

It is a happy number.

It is not a de Polignac number, because 165641314105 - 2²⁵ = 165607759673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165641314109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2925090 + ... + 2981179.

It is an arithmetic number, because the mean of its divisors is an integer number (12757543200).

Almost surely, 2^165641314105 is an apocalyptic number.

It is an amenable number.

165641314105 is a deficient number, since it is larger than the sum of its proper divisors (38479377095).

165641314105 is an equidigital number, since it uses as much as digits as its factorization.

165641314105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5906424.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 165641314105 in words is "one hundred sixty-five billion, six hundred forty-one million, three hundred fourteen thousand, one hundred five".