165287014665 has 16 divisors (see below), whose sum is σ = 264663155328. Its totient is φ = 88085097216.

The previous prime is 165287014649. The next prime is 165287014667. The reversal of 165287014665 is 566410782561.

It is a happy number.

It is not a de Polignac number, because 165287014665 - 2⁴ = 165287014649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165287014667) 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, 4228477 + ... + 4267386.

It is an arithmetic number, because the mean of its divisors is an integer number (16541447208).

Almost surely, 2^165287014665 is an apocalyptic number.

165287014665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165287014665 is a deficient number, since it is larger than the sum of its proper divisors (99376140663).

165287014665 is a wasteful number, since it uses less digits than its factorization.

165287014665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8497168.

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 165287014665 in words is "one hundred sixty-five billion, two hundred eighty-seven million, fourteen thousand, six hundred sixty-five".