165465935189 has 4 divisors (see below), whose sum is σ = 174174668640. Its totient is φ = 156757201740.

The previous prime is 165465935177. The next prime is 165465935191. The reversal of 165465935189 is 981539564561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165465935189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165465935119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4354366697 + ... + 4354366734.

It is an arithmetic number, because the mean of its divisors is an integer number (43543667160).

Almost surely, 2^165465935189 is an apocalyptic number.

165465935189 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

165465935189 is a deficient number, since it is larger than the sum of its proper divisors (8708733451).

165465935189 is an equidigital number, since it uses as much as digits as its factorization.

165465935189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8708733450.

The product of its digits is 34992000, while the sum is 62.

The spelling of 165465935189 in words is "one hundred sixty-five billion, four hundred sixty-five million, nine hundred thirty-five thousand, one hundred eighty-nine".