165520104 has 32 divisors (see below), whose sum is σ = 414119520. Its totient is φ = 55130816.

The previous prime is 165520049. The next prime is 165520111. The reversal of 165520104 is 401025561.

165520104 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52147 + ... + 55229.

It is an arithmetic number, because the mean of its divisors is an integer number (12941235).

Almost surely, 2^165520104 is an apocalyptic number.

It is an amenable number.

165520104 is an abundant number, since it is smaller than the sum of its proper divisors (248599416).

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

165520104 is a wasteful number, since it uses less digits than its factorization.

165520104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5329 (or 5325 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 165520104 is about 12865.4616706903. The cubic root of 165520104 is about 549.0563477123.

Adding to 165520104 its reverse (401025561), we get a palindrome (566545665).

The spelling of 165520104 in words is "one hundred sixty-five million, five hundred twenty thousand, one hundred four".