165506104 has 8 divisors (see below), whose sum is σ = 310323960. Its totient is φ = 82753048.

The previous prime is 165506087. The next prime is 165506113. The reversal of 165506104 is 401605561.

165506104 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×165506104² = 54784540922517632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10344124 + ... + 10344139.

It is an arithmetic number, because the mean of its divisors is an integer number (38790495).

Almost surely, 2^165506104 is an apocalyptic number.

It is an amenable number.

165506104 is a deficient number, since it is larger than the sum of its proper divisors (144817856).

165506104 is a wasteful number, since it uses less digits than its factorization.

165506104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20688269 (or 20688265 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 165506104 is about 12864.9175667783. The cubic root of 165506104 is about 549.0408672049.

The spelling of 165506104 in words is "one hundred sixty-five million, five hundred six thousand, one hundred four".