165169338667 has 12 divisors (see below), whose sum is σ = 175488457480. Its totient is φ = 155425360896.

The previous prime is 165169338643. The next prime is 165169338689. The reversal of 165169338667 is 766833961561.

It is a happy number.

165169338667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165169338667 - 2¹⁹ = 165168814379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165169339667) 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 11 ways as a sum of consecutive naturals, for example, 1643884 + ... + 1741462.

Almost surely, 2^165169338667 is an apocalyptic number.

165169338667 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

165169338667 is a deficient number, since it is larger than the sum of its proper divisors (10319118813).

165169338667 is an equidigital number, since it uses as much as digits as its factorization.

165169338667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103470 (or 103453 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 61.

The spelling of 165169338667 in words is "one hundred sixty-five billion, one hundred sixty-nine million, three hundred thirty-eight thousand, six hundred sixty-seven".