165545750338 has 8 divisors (see below), whose sum is σ = 262925603532. Its totient is φ = 77903882496.

The previous prime is 165545750323. The next prime is 165545750347. The reversal of 165545750338 is 833057545561.

165545750338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 139975501689 + 25570248649 = 374133^2 + 159907^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×165545750338² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2434496295 + ... + 2434496362.

Almost surely, 2^165545750338 is an apocalyptic number.

165545750338 is a deficient number, since it is larger than the sum of its proper divisors (97379853194).

165545750338 is a wasteful number, since it uses less digits than its factorization.

165545750338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4868992676.

The product of its (nonzero) digits is 7560000, while the sum is 52.

The spelling of 165545750338 in words is "one hundred sixty-five billion, five hundred forty-five million, seven hundred fifty thousand, three hundred thirty-eight".