165662266311044 has 12 divisors (see below), whose sum is σ = 290686201880844. Its totient is φ = 82609065773664.

The previous prime is 165662266311041. The next prime is 165662266311067. The reversal of 165662266311044 is 440113662266561.

It can be written as a sum of positive squares in 2 ways, for example, as 120953144536900 + 44709121774144 = 10997870^2 + 6686488^2 .

It is a super-2 number, since 2×165662266311044² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165662266311041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55516843787 + ... + 55516846770.

It is an arithmetic number, because the mean of its divisors is an integer number (24223850156737).

Almost surely, 2^{165662266311044} is an apocalyptic number.

It is an amenable number.

165662266311044 is a deficient number, since it is larger than the sum of its proper divisors (125023935569800).

165662266311044 is a wasteful number, since it uses less digits than its factorization.

165662266311044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111033690934 (or 111033690932 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 53.

The spelling of 165662266311044 in words is "one hundred sixty-five trillion, six hundred sixty-two billion, two hundred sixty-six million, three hundred eleven thousand, forty-four".