165014853091 has 16 divisors (see below), whose sum is σ = 180754172928. Its totient is φ = 149399762400.

The previous prime is 165014853043. The next prime is 165014853109. The reversal of 165014853091 is 190358410561.

It is a cyclic number.

It is not a de Polignac number, because 165014853091 - 2¹⁹ = 165014328803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165014853011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2688046 + ... + 2748748.

It is an arithmetic number, because the mean of its divisors is an integer number (11297135808).

Almost surely, 2^165014853091 is an apocalyptic number.

165014853091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

165014853091 is a deficient number, since it is larger than the sum of its proper divisors (15739319837).

165014853091 is a wasteful number, since it uses less digits than its factorization.

165014853091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61722.

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 165014853091 in words is "one hundred sixty-five billion, fourteen million, eight hundred fifty-three thousand, ninety-one".