165423606 has 16 divisors (see below), whose sum is σ = 334259184. Its totient is φ = 54572544.

The previous prime is 165423593. The next prime is 165423607. The reversal of 165423606 is 606324561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165423607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141535 + ... + 142698.

It is an arithmetic number, because the mean of its divisors is an integer number (20891199).

Almost surely, 2^165423606 is an apocalyptic number.

165423606 is an abundant number, since it is smaller than the sum of its proper divisors (168835578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165423606 is a wasteful number, since it uses less digits than its factorization.

165423606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284335.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 165423606 is about 12861.7108504273. The cubic root of 165423606 is about 548.9496272640.

The spelling of 165423606 in words is "one hundred sixty-five million, four hundred twenty-three thousand, six hundred six".