16505104 has 40 divisors (see below), whose sum is σ = 39872448. Its totient is φ = 6430080.

The previous prime is 16505087. The next prime is 16505123. The reversal of 16505104 is 40150561.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5467 + ... + 7930.

Almost surely, 2^16505104 is an apocalyptic number.

16505104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16505104 is an abundant number, since it is smaller than the sum of its proper divisors (23367344).

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

16505104 is a wasteful number, since it uses less digits than its factorization.

16505104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13423 (or 13417 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 16505104 is about 4062.6474127101. The cubic root of 16505104 is about 254.6084160270.

Adding to 16505104 its reverse (40150561), we get a palindrome (56655665).

The spelling of 16505104 in words is "sixteen million, five hundred five thousand, one hundred four".