165960404 has 12 divisors (see below), whose sum is σ = 293425524. Its totient is φ = 82124544.

The previous prime is 165960401. The next prime is 165960427. The reversal of 165960404 is 404069561.

165960404 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 32604100 + 133356304 = 5710^2 + 11548^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165960401) 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, 213479 + ... + 214254.

It is an arithmetic number, because the mean of its divisors is an integer number (24452127).

Almost surely, 2^165960404 is an apocalyptic number.

It is an amenable number.

165960404 is a deficient number, since it is larger than the sum of its proper divisors (127465120).

165960404 is a wasteful number, since it uses less digits than its factorization.

165960404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427834 (or 427832 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 165960404 is about 12882.5620122707. The cubic root of 165960404 is about 549.5427648927.

The spelling of 165960404 in words is "one hundred sixty-five million, nine hundred sixty thousand, four hundred four".