165473755 has 16 divisors (see below), whose sum is σ = 211186080. Its totient is φ = 124111872.

The previous prime is 165473747. The next prime is 165473773. The reversal of 165473755 is 557374561.

It is a cyclic number.

It is not a de Polignac number, because 165473755 - 2³ = 165473747 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 237 + ... + 18193.

It is an arithmetic number, because the mean of its divisors is an integer number (13199130).

Almost surely, 2^165473755 is an apocalyptic number.

165473755 is a deficient number, since it is larger than the sum of its proper divisors (45712325).

165473755 is a wasteful number, since it uses less digits than its factorization.

165473755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18078.

The product of its digits is 441000, while the sum is 43.

The square root of 165473755 is about 12863.6602489338. The cubic root of 165473755 is about 549.0050939416.

It can be divided in two parts, 16547 and 3755, that added together give a palindrome (20302).

The spelling of 165473755 in words is "one hundred sixty-five million, four hundred seventy-three thousand, seven hundred fifty-five".