165031040266 has 16 divisors (see below), whose sum is σ = 247754102400. Its totient is φ = 82446372288.

The previous prime is 165031040261. The next prime is 165031040299. The reversal of 165031040266 is 662040130561.

165031040266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×165031040266² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165031040261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15506575 + ... + 15517213.

It is an arithmetic number, because the mean of its divisors is an integer number (15484631400).

Almost surely, 2^165031040266 is an apocalyptic number.

165031040266 is a deficient number, since it is larger than the sum of its proper divisors (82723062134).

165031040266 is a wasteful number, since it uses less digits than its factorization.

165031040266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16413.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 165031040266 in words is "one hundred sixty-five billion, thirty-one million, forty thousand, two hundred sixty-six".